How these were made: the recording was split into stems to set the vocals and drums aside, and its beats were tracked one by one, since songs drift in tempo. Each half bar of the bass and backing was matched to the closest chord, and the lyrics were matched word by word to a transcript, so every chord sits over the word being sung when it changes. It’s a close reading of the recording, not the artist’s own chart, so trust your ear where they disagree. Play plays these chords on the song’s own timing: Synth is a simple keyboard and bass in whatever key the sheet is in; Recording is the song with its vocals taken out. Vocals start turned up, so you sing along with the original singer; turn them down to sing it yourself.