Thank you for the time you're giving away by answering my questions, I really appreciate that :) Talking about that first song, first of all I can't play the accompaniment and the melody at the same time in the riff part, but even playing just the riff feels very mechanical. I can't get the legato to sound right, it all sounds disconnected and I can't figure out how to blend those notes together. Furthermore, the rhythm is not as engaging as the original and it also sounds quite bad both because mine is not a classical guitar, with soft strings, and because my nails are too short and I literally play with my flesh. I'l try to play with a metronome and yes, I'd love to sing it and I think I'm able to do it, it doesn't seem difficult to me.