Hey there, benm_mtl!
Thanks for reaching out to the Apple Support Communities! It sounds like you are looking for an easier option to delete multiple songs from your iPhone instead of having to delete them one by one. Check out this article for more information about how to Delete music, movies, and TV shows from your device. Once you go to Settings > General > iPhone Storage > Music, you should see an "Edit" option. This will give you the option to delete any music by a specific artist. You can also select the artist, select the album and then choose the "Edit" option in the top right corner to remove only certain songs from an album.
Thanks for the excellent question and have a super day!