Me:

is there like an established good way of sending your friends a song? I feel like I need a spreadsheet of which music service they use.

Turns out there are a couple of services for this.

• Tapelink (example)
• I Don’t Have Spotify (example)
• Song.link (example)

But honestly it’s just enough of a pain in the ass to do this, particularly on-the-go, that the real answer is probably just finding a YouTube video of it and sharing that.