diff --git a/keyboards/planck/keymaps/mjuma/config.h b/keyboards/planck/keymaps/mjuma/config.h
new file mode 100644
index 00000000000..f399fa0c23d
--- /dev/null
+++ b/keyboards/planck/keymaps/mjuma/config.h
@@ -0,0 +1,28 @@
+/* Copyright 2017-2021 M Juma
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see .
+ */
+
+#pragma once
+
+#ifdef AUDIO_ENABLE
+ #define STARTUP_SONG SONG(PLANCK_SOUND)
+
+ #define DEFAULT_LAYER_SONGS { SONG(QWERTY_SOUND), \
+ SONG(COLEMAK_SOUND), \
+ SONG(DVORAK_SOUND) \
+ }
+#endif
+
+#define TAPPING_TERM 200
diff --git a/keyboards/planck/keymaps/mjuma/keymap.c b/keyboards/planck/keymaps/mjuma/keymap.c
new file mode 100644
index 00000000000..2204fb2881f
--- /dev/null
+++ b/keyboards/planck/keymaps/mjuma/keymap.c
@@ -0,0 +1,231 @@
+/* Copyright 2017-2021 M Juma
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see .
+ */
+
+#include QMK_KEYBOARD_H
+#include "muse.h"
+
+enum planck_layers {
+ _QWERTY,
+ _LOWER,
+ _RAISE,
+ _GAMING,
+ _ADJUST,
+ _FN,
+ _SPACE_FN
+};
+
+enum planck_keycodes {
+ QWERTY = SAFE_RANGE,
+ GAMING
+};
+
+enum taps {
+ TD_SHIFT_CAPS = 0
+};
+
+qk_tap_dance_action_t tap_dance_actions[] = {
+ [TD_SHIFT_CAPS] = ACTION_TAP_DANCE_DOUBLE(KC_LSFT, KC_CAPS)
+};
+
+// Fillers to make layering more clear
+#define LOWER MO(_LOWER)
+#define RAISE MO(_RAISE)
+#define FN MO(_FN)
+#define SPACE_FN LT(_SPACE_FN, KC_SPC)
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+/* Qwerty
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab | Q | W | E | R | T | Y | U | I | O | P | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | GEsc | A | S | D | F | G | H | J | K | L | ; | " |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift| Z | X | C | V | B | N | M | , | . | / |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Ctrl | FN | GUI | Alt |Lower | Space FN |Raise | Left | Down | Up |Right |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_QWERTY] = LAYOUT_planck_grid(
+ KC_TAB, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_BSPC,
+ KC_GESC, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_QUOT,
+ TD(TD_SHIFT_CAPS), KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, MT(MOD_RSFT, KC_ENT),
+ KC_LCTL, FN, KC_LALT, KC_LGUI, LOWER, SPACE_FN, SPACE_FN, RAISE, KC_LEFT, KC_DOWN, KC_UP, KC_RGHT
+),
+
+/* Raise
+ * ,-----------------------------------------------------------------------------------.
+ * | ` | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 0 | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | | | | | | | * | 4 | 5 | 6 | - | \ |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | | | | | | | / | 1 | 2 | 3 | + |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | | | | | | Space | | 0 | . | = | |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_RAISE] = LAYOUT_planck_grid(
+ KC_GRV, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_BSPC,
+ _______, _______, _______, _______, _______, _______, KC_PAST, KC_4, KC_5, KC_6, KC_PMNS, KC_BSLS,
+ _______, _______, _______, _______, _______, _______, KC_PSLS, KC_1, KC_2, KC_3, KC_PPLS, MT(MOD_LSFT, KC_ENT),
+ _______, _______, _______, _______, _______, KC_SPC, KC_SPC, _______, KC_0, KC_PDOT, KC_PEQL, _______
+),
+
+/* Lower
+ * ,-----------------------------------------------------------------------------------.
+ * | ~ | ! | @ | # | $ | % | ^ | & | * | ( | ) | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | | | | / | { | [ | ] | } | \ | - | = | | |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | | | | | | | | | | _ | + |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | | | | | | Space | | Home | PgDn | PgUp | End |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_LOWER] = LAYOUT_planck_grid(
+ KC_TILD, KC_EXLM, KC_AT, KC_HASH, KC_DLR, KC_PERC, KC_CIRC, KC_AMPR, KC_ASTR, KC_LPRN, KC_RPRN, KC_BSPC,
+ _______, _______, _______, KC_SLSH, KC_LCBR, KC_LBRC, KC_RBRC, KC_RCBR, KC_BSLS, KC_MINS, KC_EQL, KC_PIPE,
+ _______, _______, _______, _______, _______, _______, _______, _______, _______, KC_UNDS, KC_PLUS, MT(MOD_LSFT, KC_ENT),
+ _______, _______, _______, _______, _______, KC_SPC, KC_SPC, _______, KC_HOME, KC_PGDN, KC_PGUP, KC_END
+),
+
+/* fn
+ * ,-----------------------------------------------------------------------------------.
+ * | | F1 | F2 | F3 | F4 | F5 | F6 | F7 | F8 | F9 | F10 | Del |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | | F11 | F12 | F13 | F14 | F15 | |INSERT| Home | PgUp | | |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | | | | | | | |DELETE| End | PgDn | | Enter|
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | | | | | | Space | | | | | |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_FN] = LAYOUT_planck_grid(
+ _______, KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F6, KC_F7, KC_F8, KC_F9, KC_F10, KC_DEL,
+ _______, KC_F11, KC_F12, KC_F13, KC_F14, KC_F15, _______, KC_INS, KC_HOME, KC_PGUP, _______, _______,
+ _______, _______, _______, _______, _______, _______, _______, KC_DEL, KC_END, KC_PGDN, _______, MT(MOD_LSFT, KC_ENT),
+ _______, _______, _______, _______, _______, KC_SPC, KC_SPC, _______, _______, _______, _______, _______
+),
+
+/* Space fn
+ * ,------------------------------------------------------------------------------------.
+ * |PRNT SC| | UP | | | | | | | | | |
+ * |-------+------+------+------+------+-------------+------+------+------+------+------|
+ * | | LEFT | DOWN | RIGHT| | | LEFT | DOWN | UP | RIGHT| | |
+ * |-------+------+------+------+------+------|------+------+------+------+------+------|
+ * | |ALT+1 |ALT+2 |ALT+3 |ALT+4 |ALT+5 |ALT+6 |ALT+7 |ALT+8 |ALT+9 |ALT+10| |
+ * |-------+------+------+------+------+------+------+------+------+------+------+------|
+ * | | | | |VOLDWN| |VOL UP| PREV | MUTE |PLY/PS| NEXT |
+ * `------------------------------------------------------------------------------------'
+ */
+[_SPACE_FN] = LAYOUT_planck_grid(
+ KC_PSCR, _______, KC_UP, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+ _______, KC_LEFT, KC_DOWN, KC_RIGHT, _______, _______, KC_LEFT, KC_DOWN, KC_UP, KC_RIGHT, _______, _______,
+ _______, LALT(KC_1), LALT(KC_2), LALT(KC_3), LALT(KC_4), LALT(KC_5), LALT(KC_6), LALT(KC_7), LALT(KC_8), LALT(KC_9), LALT(KC_0), _______,
+ _______, _______, _______, _______, KC_VOLD, _______, _______, KC_VOLU, KC_MPRV, KC_MUTE, KC_MPLY, KC_MNXT
+),
+
+/* Gaming Layer
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab | Q | W | E | R | T | Y | U | I | O | P | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Esc | A | S | D | F | G | H | J | K | L | ; | " |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift| Z | X | C | V | B | N | M | , | . | / |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Ctrl | FN | GUI | Alt |Lower | Space |Raise | Left | Down | Up |Right |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_GAMING] = LAYOUT_planck_grid(
+ KC_TAB, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_BSPC,
+ KC_GESC, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_QUOT,
+ TD(TD_SHIFT_CAPS), KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, MT(MOD_RSFT, KC_ENT),
+ KC_LCTL, FN, KC_LGUI, KC_LALT, LOWER, KC_SPC, KC_SPC, RAISE, KC_LEFT, KC_DOWN, KC_UP, KC_RGHT
+),
+
+
+/* Adjust (Lower + Raise)
+ * ,-----------------------------------------------------------------------------------.
+ * | |RESET |DEBUG | | | | |DMREC1|DMREC2| | | |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | |GAMING| | | | | |DMPLY1|DMPLY2|Audoff|Aud on| |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | | | | | | | |DMRSTP| |Musoff|Mus on|MusMod|
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | | | |AG_TOG| | | | |Voice-|Voice+| |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_ADJUST] = LAYOUT_planck_grid(
+ _______, RESET, DEBUG, _______, _______, _______, _______, DM_REC1, DM_REC2, _______, _______, _______,
+ _______, TG(_GAMING), ___, _______, _______, _______, _______, DM_PLY1, DM_PLY2, AU_OFF, AU_ON, _______,
+ _______, _______, _______, _______, _______, _______, _______, DM_RSTP, _______, MU_OFF, MU_ON, MU_MOD,
+ _______, _______, _______, AG_TOGG, _______, _______, _______, _______, _______, MUV_DE, MUV_IN, _______
+)
+
+};
+
+/* Layer Change Code
+ * Runs everytime the layer gets changed
+ */
+layer_state_t layer_state_set_user(layer_state_t state) {
+ return update_tri_layer_state(state, _LOWER, _RAISE, _ADJUST);
+}
+
+bool muse_mode = false;
+uint8_t last_muse_note = 0;
+uint16_t muse_counter = 0;
+uint8_t muse_offset = 70;
+uint16_t muse_tempo = 50;
+
+void dip_switch_update_user(uint8_t index, bool active) {
+ switch (index) {
+ case 1:
+ if (active) {
+ muse_mode = true;
+ } else {
+ muse_mode = false;
+ }
+ }
+}
+
+void matrix_scan_user(void) {
+ #ifdef AUDIO_ENABLE
+ if (muse_mode) {
+ if (muse_counter == 0) {
+ uint8_t muse_note = muse_offset + SCALE[muse_clock_pulse()];
+ if (muse_note != last_muse_note) {
+ stop_note(compute_freq_for_midi_note(last_muse_note));
+ play_note(compute_freq_for_midi_note(muse_note), 0xF);
+ last_muse_note = muse_note;
+ }
+ }
+ muse_counter = (muse_counter + 1) % muse_tempo;
+ }
+ #endif
+}
+
+/* Controls which keycodes are processed when in music mode
+ * Return: false if key should be honored in music mode
+ */
+bool music_mask_user(uint16_t keycode) {
+ switch (keycode) {
+ case RAISE:
+ case LOWER:
+ return false;
+ default:
+ return true;
+ }
+}
diff --git a/keyboards/planck/keymaps/mjuma/readme.md b/keyboards/planck/keymaps/mjuma/readme.md
new file mode 100644
index 00000000000..bc5d0c77f07
--- /dev/null
+++ b/keyboards/planck/keymaps/mjuma/readme.md
@@ -0,0 +1,183 @@
+# M Juma Planck Layout
+
+## Layers
+
+```ascii
+Keymap: 32 Layers Layer: action code matrix
+----------------- ---------------------
+stack of layers array_of_action_code[row][column]
+ ____________ precedence _______________________
+ / / | high / ESC / F1 / F2 / F3 ....
+ 31 /___________// | /-----/-----/-----/-----
+ 30 /___________// | / TAB / Q / W / E ....
+ 29 /___________/ | /-----/-----/-----/-----
+ : _:_:_:_:_:__ | : /LCtrl/ A / S / D ....
+ : / : : : : : / | : / : : : :
+ 2 /___________// | 2 `--------------------------
+ 1 /___________// | 1 `--------------------------
+ 0 /___________/ V low 0 `--------------------------
+```
+
+### Qwerty
+
+```ascii
+,-----------------------------------------------------------------------------------.
+| Tab | Q | W | E | R | T | Y | U | I | O | P | Bksp |
+|------+------+------+------+------+-------------+------+------+------+------+------|
+| GEsc | A | S | D | F | G | H | J | K | L | ; | " |
+|------+------+------+------+------+------|------+------+------+------+------+------|
+| Shift| Z | X | C | V | B | N | M | , | . | / |Enter |
+|------+------+------+------+------+------+------+------+------+------+------+------|
+| Ctrl | FN | GUI | Alt |Lower | Space FN |Raise | Left | Down | Up |Right |
+`-----------------------------------------------------------------------------------'
+```
+
+#### Qwerty Layer Features
+
+- [Grave Escape](https://docs.qmk.fm/#/feature_grave_esc)
+- [Tap Dance](https://docs.qmk.fm/#/feature_tap_dance) Left Shift
+ - Tap => Shift
+ - Double Tap => Capslock
+- [Mod-Tap](https://docs.qmk.fm/#/mod_tap) Enter
+ - Tap => Enter
+ - Hold => Right Shift
+- [Layer Toggle](https://docs.qmk.fm/#/feature_layers) Space
+ - Tap => Space
+ - Hold => Activate ***Space Function*** Layer
+
+### Raise
+
+```ascii
+,-----------------------------------------------------------------------------------.
+| ` | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 0 | Bksp |
+|------+------+------+------+------+-------------+------+------+------+------+------|
+| | | | | | | * | 4 | 5 | 6 | - | \ |
+|------+------+------+------+------+------|------+------+------+------+------+------|
+| | | | | | | / | 1 | 2 | 3 | + |Enter |
+|------+------+------+------+------+------+------+------+------+------+------+------|
+| | | | | | Space | | 0 | . | = | |
+`-----------------------------------------------------------------------------------'
+```
+
+### Lower
+
+```ascii
+,-----------------------------------------------------------------------------------.
+| ~ | ! | @ | # | $ | % | ^ | & | * | ( | ) | Bksp |
+|------+------+------+------+------+-------------+------+------+------+------+------|
+| | | | / | { | [ | ] | } | \ | - | = | | |
+|------+------+------+------+------+------|------+------+------+------+------+------|
+| | | | | | | | | | _ | + |Enter |
+|------+------+------+------+------+------+------+------+------+------+------+------|
+| | | | | | Space | | Home | PgDn | PgUp | End |
+`-----------------------------------------------------------------------------------'
+```
+
+### Function
+
+```ascii
+,-----------------------------------------------------------------------------------.
+| | F1 | F2 | F3 | F4 | F5 | F6 | F7 | F8 | F9 | F10 | Del |
+|------+------+------+------+------+-------------+------+------+------+------+------|
+| | F11 | F12 | F13 | F14 | F15 | |INSERT| Home | PgUp | | |
+|------+------+------+------+------+------|------+------+------+------+------+------|
+| | | | | | | |DELETE| End | PgDn | | Enter|
+|------+------+------+------+------+------+------+------+------+------+------+------|
+| | | | | | Space | | | | | |
+`-----------------------------------------------------------------------------------'
+```
+
+### Space Function
+
+```ascii
+,------------------------------------------------------------------------------------.
+|PRNT SC| | UP | | | | | | | | | |
+|-------+------+------+------+------+-------------+------+------+------+------+------|
+| | LEFT | DOWN | RIGHT| | | LEFT | DOWN | UP | RIGHT| | |
+|-------+------+------+------+------+------|------+------+------+------+------+------|
+| |ALT+1 |ALT+2 |ALT+3 |ALT+4 |ALT+5 |ALT+6 |ALT+7 |ALT+8 |ALT+9 |ALT+10| |
+|-------+------+------+------+------+------+------+------+------+------+------+------|
+| | | | |VOLDWN| |VOL UP| PREV | MUTE |PLY/PS| NEXT |
+`------------------------------------------------------------------------------------'
+```
+
+### Gaming
+
+```ascii
+,-----------------------------------------------------------------------------------.
+| Tab | Q | W | E | R | T | Y | U | I | O | P | Bksp |
+|------+------+------+------+------+-------------+------+------+------+------+------|
+| Esc | A | S | D | F | G | H | J | K | L | ; | " |
+|------+------+------+------+------+------|------+------+------+------+------+------|
+| Shift| Z | X | C | V | B | N | M | , | . | / |Enter |
+|------+------+------+------+------+------+------+------+------+------+------+------|
+| Ctrl | FN | GUI | Alt |Lower | Space |Raise | Left | Down | Up |Right |
+`-----------------------------------------------------------------------------------'
+```
+
+### Adjust (Lower + Raise)
+
+```ascii
+,-----------------------------------------------------------------------------------.
+| |RESET |DEBUG | | | | |DMREC1|DMREC2| | | |
+|------+------+------+------+------+-------------+------+------+------+------+------|
+| |GAMING| | | | | |DMPLY1|DMPLY2|Audoff|Aud on| |
+|------+------+------+------+------+------|------+------+------+------+------+------|
+| | | | | | | |DMRSTP| |Musoff|Mus on|MusMod|
+|------+------+------+------+------+------+------+------+------+------+------+------|
+| | | |AG_TOG| | | | |Voice-|Voice+| |
+`-----------------------------------------------------------------------------------'
+```
+
+#### Adjust Layer Features
+
+```text
+RESET: Put the keyboard into bootloader mode for flashing
+DEBUG: Toggle debug mode
+EEP_RST: Reinitializes the keyboard’s EEPROM (persistent memory)
+
+AG_TOG: Toggle Alt and GUI swap on both sides (Mac)
+
+DM_REC1: Start recording Macro 1
+DM_REC2: Start recording Macro 2
+DM_PLY1: Replay Macro 1
+DM_PLY2: Replay Macro 2
+DM_RSTP: Finish the macro that is currently being recorded.
+
+AU_ON: Audio mode on
+AU_OFF: Audio mode off
+AU_TOG: Toggles Audio mode
+MU_ON: Turn music mode on
+MU_OFF: Turn music mode off
+MU_TOG: Toggle music mode
+MU_MOD: Cycle through the music modes:
+ CHROMATIC_MODE: Chromatic scale, row changes the octave
+ GUITAR_MODE: Chromatic scale, but the row changes the string (+5 st)
+ VIOLIN_MODE: Chromatic scale, but the row changes the string (+7 st)
+ MAJOR_MODE: Major scale
+
+In Music Mode:
+ LCTL: start a recording
+ LALT: stop recording/stop playing
+ LGUI: play recording
+ KC_UP: speed-up playback
+ KC_DOWN: slow-down playback
+```
+
+## Compilation
+
+Use the docker image to compile this keyboard layout by running the following from the root of the repo:
+
+```sh
+util/docker_build.sh planck/rev6:mjuma
+```
+
+## Flashing
+
+Flashing on linux can be done through the docker image
+
+```sh
+sudo util/docker_build.sh planck/rev6:mjuma:flash
+```
+
+or on Windows using the [QMK Toolbox](https://github.com/qmk/qmk_toolbox)
diff --git a/keyboards/planck/keymaps/mjuma/rules.mk b/keyboards/planck/keymaps/mjuma/rules.mk
new file mode 100644
index 00000000000..60f314e82bd
--- /dev/null
+++ b/keyboards/planck/keymaps/mjuma/rules.mk
@@ -0,0 +1,3 @@
+SRC += muse.c
+DYNAMIC_MACRO_ENABLE = yes
+TAP_DANCE_ENABLE = yes