If you've not listened to a podcast called "Reply All", start with episode 158. If you what I did, you'll then do an archive binge and come across what they refer to as "the best hold music in the world", something called Simplicity by a band called Macroform.
If you search for that on Youtube, about the third hit is a mashup of the song with "Sky full of Song" by Florence and the Machine.
The reason I say it's baffling is that I can't see what they've done - I can't see the join. Normally mashups require some evident effort of editing, whereas this just seems to have involved taking the acapella track of "Sky Full of Song" and pasting it directly over an entirely unaltered file of "Simplicity" - no speed adjustments, no snips, no key alterations. Can two songs be accidentally so similar in structure that you can simply drop one into the other, or did I miss something?
Either way, I think the mashup is actually better than FatM's original.
(, Sat 1 Jan 2022, 19:05, Reply)
Neither are by any means the most dynamic of Songs, so it's no surprise that they mesh together well.
Here's another good example.
(, Sat 1 Jan 2022, 19:11, Reply)
I lost my old log in details.
For the ultimate mashup here, see "Fly me off the Handel"by the ukulele orchestra. 6 or 8 songs in the same key simultaneously.
youtu.be/2P1-UvqdD7o
(, Sun 2 Jan 2022, 10:21, Reply)