This app synthesizes harmony parts with your solo singing in real-time. Mix up to five harmony parts using an ad-lib keyboard and adjust pitch for chorus effects. Record and playback synthesized sounds, or use it for karaoke practice.






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Whether you want more options like Auto Compose Music Box or a completely different take on the same concept, our curated list of 8+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.






This app synthesizes harmony parts with your solo singing in real-time. Mix up to five harmony parts using an ad-lib keyboard and adjust pitch for chorus effects. Record and playback synthesized sounds, or use it for karaoke practice.




This app simulates a traditional Japanese instrument called the Sho, used in Gagaku music. It features 17 bamboo pipes that produce a sound similar to a small pipe organ. Users can play notes by pressing buttons, adjust volume by tilting the device, and hold notes by dragging their finger.














Create music easily with simple tap controls. This app offers a range of high-quality sounds and tempo adjustments, making it accessible for all ages and musical experience levels. Shake your device to clear the sound pads.