The title says it all, really. Some of these short tracks have been floating around on my Soundcloud account for a while, but none of you Youtubers have been able to hear them yet! So, I decided to upload them all in one big video. Also, I apologise for my poor video-making skills. I'm a musician, after all, and not a film editor/maker/whatever. 
Downloads for all can be found on my Soundcloud page here: http://soundcloud.com/nosnibormada

None of the art featured here is mine. 
Source 1: http://app03.c45199.blueboxgrid.com/photos/367543-my-little-pony-friendship-is-magic
Source 2: http://angall3.deviantart.com/art/Fallout-Equestria-Wallpaper-299020837
Source 3: Unkown/lost original source. Please let me know if you find it!
Source 4: http://princesssaros.deviantart.com/gallery/#/d54c52p 

Samples taken from: 
So many Wonders (acapella) & The Smile Song (acapella) - Daniel Ingram. 
Everything Everything - Final Form