49f53c07bb
When the media library is not sorted by mtime and not in two column
mode, there is no reason to use listallinfo/GetDirectoryRecursive,
instead of list/GetList.
Using list instead of listallinfo is desired because listallinfo may be
slow, fetches a lot more data than necessary in this case and because
the MPD reference says this about listallinfo:
Do not use this command. Do not manage a client-side copy of MPD's
database. That is fragile and adds huge overhead. It will break with
large databases. Instead, query MPD whenever you need something.