If it is only a strumming chords, then 7x can be too repetative. But I assume you have a melody/words as well. You can avoid the repetative feeling by rhythmic variations while chord progression stays the same.
If it is only a strumming chords, then 7x can be too repetative. But I assume you have a melody/words as well. You can avoid the repetative feeling by rhythmic variations while chord progression stays the same.