Affiliate Marketing Secrets

Im 17, and i love music. I got into producing about a year ago now, and i just can’t seem to get a hold of who i am as a producer. Some days ill produce hip hop, then some days ill produce like complex electric music, and the range of music i enjoy is so broad. My favourite artists / categories are, The Weekend, Skrillex, Frank Ocean, old smooth jazz, 90’s hip hop (especially the beats), John legend, city and colour, bon iver, and even some of the unordinary generes including Jai Paul, and Shlohmo. I just cant seem to find who i am as a producer though. Im not sure what i like best. Listen to the two different tracks in the link below and see how different they are. Anyway yea i just want advice, becuase i would like to stick to one genre? But i like so many…
http://ww.soundcloud.com/loochofficial

Okay, so I’m making a website about music since I’m also a musician. My website contains my profile, contact, etc. but I haven’t uploaded it yet.
I’m planning to include a section for downloading the music sheets I currently have, to either share it to others/sell for little amounts to help me fund my website.
1. Do you think it will be legal for me to post download links of my uploaded musicsheets(in PDF, those that I’ve uploaded on upload sites) inside my website?
2. What if I ask for little amounts or donations from downloaders? Is it okay? Will it not cause any violation to copyrights or whatever?
3. How will I make money out of my website?
4. Is it okay to put affiliate download links?
If that’s not legal, maybe I’ll just put download links to my files for free. Would that be okay?
Please explain it well.
Thanks in advance.