Hatsumi - Rhythm score generator



Drum practice rhythm score (single line score) is randomly generated with various themes. The app generate it every time the app display it, so you can always read it at first look. You can improve your reading ability by reading a lot of rhythm score at first look.
Screen sample 1 Screen sample 2 Screen sample 3 Screen sample 4 Screen sample 5 Screen sample 6 Screen sample 7 Theme selection screen

Operating environment and download

Please download "Hatsumi - Rhythm score generation" from Google Play. The supported OS is Android 4.4 or later.

How to use

How to use

The theme setting screen is displayed at the first startup. If the theme have already been set, the score screen is displayed.

The theme setting screen

Choose a theme. Press the theme list to display the score screen.

The score screen

A phrase is generated and displayed according to the set theme. The time is 4/4. At startup, the phrase displayed last time is displayed. When you press the "generate" button, the phrase will be regenerated and displayed.

How to use for practicing playing at first look

Select the first theme to display the musical score. Play the metronome at an easy-to-hit tempo and you play. When you can play to the end, the score will be displayed again. Once you're easy to play, change the theme or increase the tempo to gradually increase the difficulty.


Redistribution of this app is prohibited, but videos and screenshots using this app may be posted on the Internet such as SNS.

Created by

Tomoko Sugimoto

E-Mail : tuplet@pd6.so-net.ne.jp
twitter : @sugitomo_d

Release notes

3.10.0 (September 10, 2023)
Improved drawing of note stems and flags.
The spacing of the staff notation changes depending on the content of the phrase.
When you upgrade to this version, the phrase data saved before the upgrade will be deleted.
3.9.0 (April 30, 2023)
Added Japanese support for the theme name.
3.8.0 (October 15, 2022)
Automatically saved the set theme and generated phrase.
Changed the screen transition. Enabled to use the "back" function.
Changed the name of the "theme" button to "theme setting".
Changed the name of the "show" button to "generate".
3.7.0 (October 10, 2022)
Upgraded the target version of Android to version 13.0 (T).
Supported the new function of Android 13 "Per-app language preferences". The languages​that can be selected are Japanese and English.
3.6.0 (May 30, 2022)
Added a help button.
Added a theme selection screen and displayed an advertising banner on it.
3.5.2 (December 12, 2021)
Upgraded the target version of Android to version 12.0 (S).
3.5.1 (June 9, 2021)
I changed the target version to Android 11.0 (R).
3.5.0 (January 5, 2021)
The display contents of the following themes changed. Reduced the appearance rate of long note values such as whole notes.
Changed the design of the icon, buttons and spinners.
3.4.0 (November 11, 2020)
The position of the buttons has been changed to the bottom of the screen.
3.3.0 (May 23, 2020)
The position of "accent:16th note" on the theme list was changed.
Added the following themes.
3.2.1 (April 30, 2020)
Upgraded the target version of Android to version 10.0 (Q).
Changed the icon image of the app.
3.2.0(February 1, 2020)
The number of bars per row was always set to 1 regardless of the size of the device. (Previously, it was displayed in 2 bars per row on some devices. Previously, it was displayed in 2 bars per row on some devices. It's too small to hit while reading, so I improved it.)
3.1.1(September 1, 2019)
Fixed an issue where the phrase you were viewing sometimes disappears.
3.1.0(July 10, 2019)
Doubled the thickness of the line.
Fixed the display of ties.
Fixed the display position of the roll symbol above whole note.
3.0.0 (January 8, 2019)
Upgraded the target version of Android to version 9.0 (Pie).
Enabled to display sextuplet notation. Added the following themes.
Top and left and right margins have been deleted.
I changed the display contents of whole rest, quaver rest, sixteenth rest, flam.
2.0.0 (November 27, 2018)
Deleted theme "syncopation".
Enabled to display triplet notation. Added the following themes.
1.6.0 (September 17, 2018)
Upgraded the target version of Android to version 8.1(Oreo). Added support for Adaptive Icon.
1.5.0 (June 20, 2018)
Changed to enlarge the display according to the width of the device.
1.4.0 (May 4, 2018)
Changed the names of the themes.
The themes "accent: 8th note" and "flam: 8th note" do not use tie symbols.
Added The theme "basic: 16th note 1-2". The name of the theme "basic: 16th note 1" was changed to "basic: 16th note 1-1".
1.3.0 (April 21, 2018)
The space between the lines was opened a little.
1.2.0 (April 12, 2018)
Added the theme "reading: 16th note 4".
1.1.0 (January 26, 2018)
Added a diagonal line on the grace note of flam. (Changed from the long appoggiatura tothe short appoggiatura.)
When a roll is followed by a note without a appoggiatura, it is tied together.
The note heads other than whole notes were slanted.
1.0.0 (January 8, 2018)
Released. The supported version of Android is 4.4 or higher. Target version is Android 6.0(Marshmallow).