[Mobile][2010s] A game with little circles that create long synth notes and harmonise

I'm begging someone to help, I've had this stuck im my brain for years but never found it.

An old mobile game with these little blobs/circles that used to sing or make long synth noises? Very relaxing chilled game whenre you'd create different harmonies which used to change depending on the time of day on the game. There was day, dusk, dawn and evening which had gradients and impacted the sound created by these circles you'd place around. That's all i can really remember, I used to love it, can't find anything about it now. :(