I do that all the time. jumping an octave up or down is a great thing to do to add energy to a song.
no need to update it, you can play as written or copy what I do. the notes are the same regardless of which octave you choose.
right. I played the melody an octave higher. if I wrote it out most people couldn’t read and play it anyway as it goes past the highest note and into the altissimo range.
Experimenting in different octaves is something you all should do, not just when you see it written as such.
jumping an octave the 2nd time thru a verse or chorus (wether it’s written or not) is the best way for us to take the energy
of the performance up a notch.