Updating Synology DSM 6 to DSM 7

[SpruceFan]

I've found that the following general file structure, which worked for playlists on DSM 6, doesn't work on DSM 7. This only seems to affect playlists, everything else seems normal.

Music Files>ComposerName, Firstname Initial.>ComposerName, Firstname Initial.; Piece>Filename

Dropping the period after the initial on the first folder works. Thus:

Music Files>ComposerName, Firstname Initial>ComposerName, Firstname Initial.; Piece>Filename

I'm not sure whether this is DSM or what. Any ideas?