APKPure Appを使用する
Harpion (Harmonica app)の旧いバージョンをダウンロードすることが可能
Harpionはハーモニカプレーヤー（ハープレイアウト+タブサーチ）のためのアプリです
Harpion is a tiny app for a tiny musical instrument - harmonica (blues harp). It suits well for both, experienced harmonica players and beginners. You can use this app as a cheat-sheet when playing your real harp - it shows how notes are placed on your harmonica in the given key. You can also play this virtual harp by tapping on holes layout when you don't have a harp at hand. Harpion allows you to view/play harmonicas in different keys and tunings.