My son really enjoys making “songs” using what I can only describe as “mouth noises....” some combination of words, lip-smacking, humming, humming, and various other mouth-generated sound efforts ...like a bad beat-boxer mixed with a bad Skrillex mix.

He does this all spontaneously....he’s not recording anything.

He’s 7 and has no computer skills (we are a Windows family) or musical instrument skills.

Any suggestions for an app (iOS) or device that he could have fun with and maybe learn a little? I dug up the Korg VolcaSample Digital Sample Sequencer [1] but I reallly know nothing about this space at all and this may be waaay of base.

Thank you!

[1] https://www.google.com/shopping/product/2188865375698125258