It’s this one: Lenovo Yoga Pro 7 Gen 9
Edit: Words.
That heavily depends on what you mean by writing music. Musescore (the software, not the website) is pretty good for writing notation, and open source.
If it’s more about producing a track, there’s Ardour, also foss. If you wanna pirate an “industry standard” daw, there’s FL Studio and Ableton, I guess.
Depending on what you want to do exactly, there might be a lot of other software that fits the bill.
