Rockway
https://www.rockway.fi/

Musescore
https://musescore.com/

Virtual piano
https://virtualpiano.net/

https://www.onlinepianist.com/virtual-piano

Yousician
https://yousician.com/lp/gskw1?gclid=Cj0KCQjw1Iv0BRDaARIsAGTWD1tLZUTTETVDvMYeGOi1KAgw40sfOiy1O7JEmun2ul7IOPtve1N74ZEaAhAEEALw_wcB

Chordify
https://chordify.net/

E-chords
https://www.e-chords.com/

Ultimate guitar
https://www.ultimate-guitar.com/

Bandlab
https://www.youtube.com/playlist?list=PLbETLAyJThnSU4ayityMS8xaTiSj9jxBK

Garageband
https://www.youtube.com/channel/UCf3lD_6kau1tVjnQSvSQQJw

https://www.youtube.com/watch?v=iCqh7Ap327E

Acappella
https://www.youtube.com/playlist?list=PLbETLAyJThnRC4_Jc_7hf5UHx1yGpm4Jo