Diverse verses of a similar song commonly have tiny to no variation instrumentally. Having said that, this doesn’t signify you can’t make unpredicted alterations or add a fresh instrument involving verses. Nail down the final construction of the song. The commonest song construction applied today is Verse/ Chorus/ Verse/ Refrain/ https://andresadfhn.suomiblog.com/how-to-write-a-song-no-further-a-mystery-49562758