My friends were opening a store. Karaoke instrumentals work great as ambient music, and being a DJ is much easier because without vocals and with a similar (and pleasantly generic) production style, songs fit together really easy.
Like, there are tons of songs a DJ could never play back to back, but it works fine with the karaoke versions. Then things got singy.
Those little rectangles in the bottom right are field recordings of Brazilian kids singing! Soon, soon!
