music: Allow asymmetric seek steps #690

Job	Run time
pre-commit (check-toml)	52s
pre-commit (check-yaml)	57s
pre-commit (check-merge-conflict)	1m 44s
pre-commit (check-case-conflict)	47s
pre-commit (detect-private-key)	1m 1s
pre-commit (mixed-line-ending)	1m 4s
pre-commit (trailing-whitespace)	1m 7s
pre-commit (cspell)	1m 8s
pre-commit (typos)	1m 8s
pre-commit (cargo-fmt)	46s
pre-commit (cargo-clippy)	2m 7s
pre-commit (cargo-test)	2m 33s
pre-commit (verify_icon_files)	1m 7s
	16m 21s

Provide feedback