AmbientMusicMod VS SongRec

Ambient Music Mod - its Foss and shows the song playing nearby directly on your lockscreen just like pixel devices.... But doesn't have that much of a big database as shazam

Yes, 100% sure. Someone reverse engineer it for other phones https://github.com/KieronQuinn/AmbientMusicMod

Ambient Music Mod (version 221): Port of Now Playing from Pixels to other Android devices

You can try out the Ambient Music Mod, an app that brings the Pixel feature to any phone you can install the app in. I think it's open source, but not sure if you'd need to root the phone. https://github.com/KieronQuinn/AmbientMusicMod/releases

Ambient Music Mod is a good one

Ambient Music Mod (version 210): Port of Now Playing from Pixels to other Android devices

Link

Related: songrec. Similar tool, written in Rust. Haven't used shaq yet but it seems simpler?

https://github.com/marin-m/SongRec

Would it be possible to have this program (or something similar) running on a Pi Zero and have it displaying the songs on a small LCD. Is a Pi Zero W enough for this or should I get a more capable model?

Does this one suit you? https://github.com/marin-m/SongRec/

There is songrec which uses shazam's api. here is an issue about the android version

A while back, not sure what subreddit, someone had a bunch of radio recordings and they wanted to ID all the songs. At some point, we discovered https://github.com/marin-m/SongRec as a nifty way to ID some songs. Not sure if it will ID small artists, would probably need to test the more obscure stuff.

SongRec looks neat.