OptionalcueSubsong index that wins over a suffix in path; negative values are ignored.
Track path; a |subsong:N suffix or a trailing #N selects a subsong.
Tag names to remove; they are upper-cased. An empty list removes nothing and succeeds without dispatching.
Parameters for
metadata.removeField. Same asmetadata.removeTag, under the name older callers use; its completion event saysremoveTagas well.