Hello everyone

Every day I cycle about 1 hour and 10 mins on a no-traffic path between in farmers land (no idea what term to use...).
So on the bike I mainly daydream... since there are no cars there and it is 100% safe.µ
But I was wondering if there are any vocal excercises to do while cycling?
I was thinking about breathing excercises? since your body is cycling and I already may lack air, that way it's good to train natural exhaling or something... I don't know.
So do you know any excercises for me?

Thank yo