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/31480
OR https://7techgirl.com/cid/31480
. Piano Beat: Tiles Touch is a Music android app developed by SENSOR NOTES. The latest version is 3.8 and the it requires a 4.0.3 android version to run it. Piano Beat: Tiles Touch 's similar to other piano games, you just have to tap the music tiles then enjoy the wonderful music and rhythm in game. With Piano Beat: Tiles Touch, you can perform piano music by simply tapping piano tiles. With ease and fun, melody and rhythm of piano songs flow freely along your finger touch. Supports a wide variety of keyboard instruments (Piano, Grand Piano, Pipe Organ, Harpsichord, Accordion, Electric Guitar, Harp, Cello Pizzicato, Guzheng, Nylon Guitar, Plucked String, Music Box, Sitar, Xylophone, Harp, Vibes, Clarinet, Ukulele, Brass, Thai Bells, Tabbla, Dizi, Banjo, Flute, Saxophone, Cellto, Hamonica, Trumpet, Violin, Panpipe, Maracas, Tuba, Dulcimer, Kalimba,...). Piano Beat was released 3 years ago, and is available for Free.