Is this music?
It is only since I have had the Music 5000 that I have been able to hear experiments like this.
It is up to you to decide whether it is music or not.
You might find the word 'o' useful. I do after using 'mfl' and 'mpl' (Music 5000 User Guide page 117). pp becomes 3o, ff becomes 8o.
'end' is used to get a softer ending. Note that VOL is restored. Otherwise editing can be frustrating if no sound comes out of the speakers.