In a recent thread folks were discussing what songs they hummed when they rode. Sadly, the thread degenerated into an ear-wormfest, with people bringing up music which was capable of triggering PTSD. It was awful.
Sometimes truly great music reverberates in your noggin. It could never be designated as an ear-worm, like anything written by Bach or Mozart.
On today's ride I was "listening" to Brahms 4th Symphony, 4th movement. It is excellent hill-climbing music.
It starts off very methodical and picks up tempo as you progress through the movement, like slowly warming up on a ride. Then as the music reaches the climax (get your minds out of the gutter, please) the tempo slows to about what my cadence drops down to when I go up a steep hill. Finally the entire orchestra, as it climbs in tonality, writhes in pain and tension, only to die quickly at the end of the movement. Kind of like my ride today.
That is all.