October 27, 2025, v2.3.3

• Fix a minor bug on harmonica-tab.

April 2, 2025, v2.3.2

• Fix a bug about Bluetooth earphones.

March 27, 2025, v2.3.1

• Fix a note in tablature on half-valved(Low-Low E).

March 12, 2025, v2.3.0

• Add RemoveAds tab.

February 17, 2025, v2.2.0

• Add harmonica keys: Low D♭, Low B(H) and Low A♭.

January 31, 2025, v2.1.0

• Add harmonica keys: Low F#, Low-Low F# and Low-Low E.

January 13, 2025, v2.0.4

• Fix a bug for the temperament dot on the tuner.

September 26, 2024, v2.0.3

• It updates some libraries for iOS15.

August 14, 2024, v2.0.2

• Amend designs on tuning-meter-tab.
• Amend designs on harmonica-tab.
• Fix some minor bugs on harmonica-tab.

March 9, 2024, v2.0.1

• Fix a bug in Circle of 5th.

February 9, 2024, v2.0.0

• Add circle of fifths.
• Change some image parts.
• Change icon design.

August 16, 2023, v1.11.3

• Minor bug fixes.

June 13, 2023, v1.11.2

• Minor bug fixes.

June 2, 2023, v1.11.1

• Minor bug fixes.

May 22, 2023, v1.11.0

• Improvements scale-marks on pitch gauges.

October 4, 2022, v1.10.1

• Minor bug fixes.

December 7, 2021, v1.10.0

• Add number style tab to Tablature.

December 1, 2021, v1.9.0

• Add Tablature.

September 9, 2021, v1.8.3

• Minor bug fixes.

May 18, 2021, v1.8.2

• Minor bug fixes.

May 4, 2021, v1.8.1

• It revised the privacy policy.
• Some bugs fixes.
• It updates some libraries for iOS14.

January 25, 2021, v1.8.0

• Add pitch needle to Harmonica-tab.

October 1, 2020, v1.7.3

• Minor bug fixes.

September 7, 2020, v1.7.1

• Add the name of the temperament-dot on the tuner.

August 27, 2020, v1.7.0

• Add bending trainer for half-valved diatonic harmonicas.

July 7, 2020, v1.6.3

• Minor bug fixes.

July 4, 2020, v1.6.2

• Add the appearance of hole-buttons.

May 24, 2020, v1.6.1

• Minor bug fixes.

April 23, 2020, v1.6.0

• Add overbending trainer.

January 16, 2020, v1.5.1

• It improves the performance of bending trainer on auto-mode.

January 14, 2020, v1.5.0

• Add auto-mode to bending trainer.

December 30, 2019, v1.4.0

• Add harmonica.
• Add Marine Band compromise temperament.

November 18, 2019, v1.3.0

• Add metronome.

October 30, 2019, v1.2.1

• Add just intonation mark on the gauge of tuning meter.

October 2, 2019, v1.1.0

• Add tuning meter.

September 20, 2019, v1.0.1

• Fix hole-button layout for 4-inche device.

September 16, 2019, v1.0.0

1. Choose the key of your harmonica.




2. Turn on to manual mode.



3. Select a hole of harmonica.



4. Draw (or blow) straight note. And move the gauge to the pitch dot.



5. You get bending, pitch dot does down.



※. The blowing/drawing of each hole is as follows.

The key of the song.
The key of the harmonica.
The position.

Frequently, you might know just two of these items. How is the third one deduced?


To determine the harmonica's key by considering the position and key of the song.

As an example, you have...

• Song's key: A
• Position: 2nd position

Which harmonica do you choose?

1. On Mode, choose `Song's Key`.
2. Choose `A` from the Key for Mode.
3. The harmonica's key is located at `2nd` on the Circle of Fifths.

4. You'll take up an D-harmonica.
----------------------------------------


To determine the position by using the harmonica's and the song's keys.

As an example, you have...

• Harmonica's key: G
• Song's key: A

What position do you use when playing the G-harmonica?

1. On Mode, choose `Harmonica's Key`.
2. On the Key, select `G` for Mode.
3. The position is at `A` on the Circle of Fifths.
4. You'll play the song in third position.

(1). Pitch Dot:

This goes up and down to match the harmonica pitch. When you lower the sound with a bend, it moves down.
Also, it sounds the note when you touch on manual mode, so you can check the pitch.

(2). Gauge of Pitch:

This is a measure of the pitch.

(3). Harmonica Hole Selector:

On auto mode, here is only displays with no button.
There are 10 buttons here on manual-mode.

(4). Settings:

Shows Settings Picker.

(5). Metronome:

Shows Metronome Picker.

(6). Manual Mode Switch:

Settings Picker for manual mode


(7). Temperament:

The pitch of just intonation is calculated based on the following values.

The pitch of MB Tune(Marine Band compromise temperament) is calculated based on the following values.

(8). Volume:

Volume when pitch dot is touched.

(10). Key of Harmonica:

You can change the key of the harmonica.

Settings Picker for auto mode


(7). Temperament:

(9). Reference Pitch:

(10). Key of Harmonica:

You can change the key of the harmonica.

Metronome Picker


(11). Accent:

(12). Accent Volume:

(13). Play Start/Stop:

(14). Tempo(beat per minute):

(15). Master Volume:

- This is a trainer for over-blow and over-draw.

(1). Pitch Dot:

This goes up and down to match the harmonica pitch. When you higher the sound with over-blowing(or drawing), it moves up.
Also, it sounds the note when you touch on manual mode, so you can check the pitch.

(2). Gauge of Pitch:

This is a measure of the pitch.

(3). Harmonica Hole Selector:

On auto mode, here is only displays with no button.
There are 10 buttons here on manual-mode.

(4). Settings:

Shows Settings Picker.

(5). Metronome:

Shows Metronome Picker.

(6). Manual Mode Switch:

NOTE: In auto mode, you cannot use 3-hole over-blow and 8-hole over-draw. This is because it conflicts with the range of the other holes.

Settings Picker for manual mode


(7). Temperament:

The pitch of just intonation is calculated based on the following values.

The pitch of MB Tune(Marine Band compromise temperament) is calculated based on the following values.

(8). Volume:

Volume when pitch dot is touched.

(10). Key of Harmonica:

You can change the key of the harmonica.

Settings Picker for auto mode


(7). Temperament:

(9). Reference Pitch:

(10). Key of Harmonica:

You can change the key of the harmonica.

Metronome Picker


(11). Accent:

(12). Accent Volume:

(13). Play Start/Stop:

(14). Tempo(beat per minute):

(15). Master Volume:

- This is a trainer for bendings that are specific to the half-valved diatonic harmonica. The common bendings for diatonic harmonica should be used for the ’Bending’ tab.

(1). Pitch Dot:

This goes up and down to match the harmonica pitch. When you lower the sound with a bend, it moves down.
Also, it sounds the note when you touch on manual mode, so you can check the pitch.

(2). Gauge of Pitch:

This is a measure of the pitch.

(3). Harmonica Hole Selector:

On auto mode, here is only displays with no button.
There are 10 buttons here on manual-mode.

(4). Settings:

Shows Settings Picker.

(5). Metronome:

Shows Metronome Picker.

(6). Manual Mode Switch:

Settings Picker for manual mode


(7). Temperament:

The pitch of just intonation is calculated based on the following values.

The pitch of MB Tune(Marine Band compromise temperament) is calculated based on the following values.

(8). Volume:

Volume when pitch dot is touched.

(10). Key of Harmonica:

You can change the key of the harmonica.

Settings Picker for auto mode


(7). Temperament:

(9). Reference Pitch:

(10). Key of Harmonica:

You can change the key of the harmonica.

Metronome Picker


(11). Accent:

(12). Accent Volume:

(13). Play Start/Stop:

(14). Tempo(beat per minute):

(15). Master Volume:

(1). Gauge of Pitch:

The target pitch of each temperament is indicated by a tiny pink dot on the scale.
It always points to zero on equal temperament.

(2). Harmonica Hole Selector:

On auto mode, here is only displays with no button.
There are 20 buttons here on manual-mode.

(3). Settings:

Shows Settings Picker.

(4). Manual Mode Switch:

Settings Picker


(5). Temperament of the dot on the gauge:

The pitch of just intonation is calculated based on the following values.

The pitch of MB Tune(Marine Band compromise temperament) is calculated based on the following values.

(6). Reference Pitch:

(7). Key of Harmonica:

You can change the key of the harmonica.

(1). Harmonica:

(2). Volume:

(3). Settings:

Shows Settings Picker

Settings Picker


(4). Temperament:

The pitch of just intonation is calculated based on the following values.

The pitch of MB Tune(Marine Band compromise temperament) is calculated based on the following values.

(5). Reference Pitch:

(6). Key of Harmonica:

You can change the key of the harmonica.

NOTE: This harmonica is not polyphonic. This harmonica has no chord.

(1). Harmonica Buttons:

I'm sorry. This harmonica has no sound.

(2). Picker for notes:

(3). Staff and Note:

(4). Settings:

Shows Settings Picker

(5). Tablature:

Settings Picker


(6). Tablature Style:

(7). Key of Harmonica:

You can change the key of the harmonica.

(8). Musical key on Staff:

(1). Mode:

(2). Key for Mode:

Set the mode's key.

(3). Circle of Fifths:

It displays a circle of fifth for the mode.
You can rotate this circle.