Click flag. (Use headphones for best experience.) You can also just connect a single earbud, in which both pieces of music will be transferred to that single earbud. (Bluetooth needed.) Or connect both and get an 8d sounding piece of music. Or connect both and take either side out to listen to the pieces separately.
Went to SoundCloud after listening to this masterpiece, downloaded it, uploaded it here, & it worked! I'm honestly proud of myself for making something of my own here on Scratch for the first time. Enjoy.