So I see setlists from today's top DJs such as Swedish House Mafia, Afrojack, and Calvin Harris, a bunch of which are playing in the Sahara this year, and a lot of them are listed with these 'bootlegs' and mash-ups' with different songs layered over each other. I understand that these make these DJs jobs a lot easier so they don't have to mix them live and ensures that they are mixed perfectly when performed, it also allows other DJs to borrow these 'mash-ups' and 'bootlegs' and use them in their sets. I just want to know what the difference between a mash-up and a bootleg is?
Some 'bootleg' examples:
Here's one that SHM used a bunch to open their shows, and a picture of sonicc before his sobriety.
Some brilliant in-studio (his Gulfstream) mixing by Afrojack.
Avicii steals an unfinished track from a childhood friend of his and helps him by adding someone else's vocals:
Here are some 'mash-up' examples:
Kaskade is the king of mash-ups and uses them regularly in his sets.
Every single time Rolling In The Deep is used in a 'mash-up' it's so original and awesome.
Here's one that Tiesto used in a recent podcast, which means he's using studio mash-ups in the studio! Incredible!
Can someone help me out here? Don't even get me started on 'edits.'