Lower and higher notes

[DR54M]

I really love this website, but the range of some instruments is often a limitation. For example, I'm trying to recreate supremacy by muse (awesome song btw) but i'd need a A1 on guitar, which i can't make. I think expanding instruments range is probably one of the easiest request there are (i'd love to have a sustain option, but i know it'd be taxing on most computers for example). The upper guitar range could also reach about D6 (most guitars do) and the piano one D8 (this held me back a few time on some songs too). Do you people have request about expanding instruments range (i know the bass gained an upper octave for example after a request) ? Feel free to post them here !