Amazon Fire stick is a modified version of Android, so you can install Android apps on it. But not all apps might work due to compatibility issues.
https://7techgirl.com/apk/698776
OR https://7techgirl.com/cid/698776
. Oriental Piano is a Music android app developed by MOHA_HOMA. The latest version is v1.8 and the it requires a 4.2 android version to run it. Fast and professional piano for experts tune able oriental (eastern) notes play music files in background from your playlist. Oriental Piano was released 4 years ago, and is available for Free.