Piano Companion has wide set of supported key notations:
- English: C, D … B
- Italian: Do, Re … Si
- Russian: До, Ре … Си
- Japanese: ハ, ニ … ロ
- German: C, D … H
- French: Do, Ré … Si
- Korean: 도, 레 … 시
- Chinese: 一, 二 … 七
… and others.
iOS
- Go to Settings
- Find Language section:
- Tap Key Notation to change it.