======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '204'
                                          'artist'  "Mother's Finest"
                                     'text_people'  ''
                                         'release'  'Top 40 jaarlijsten - 1978'
                                           'title'  'Piece Of The Rock'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-OLDST-2', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-3', "
 "'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['funk rock', '70s', 'rock', 'hard rock', 'funk', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1978'
                                        'comments'  ''
                                           'genre'  'rock-cppex'
                                             'bpm'  '84.5'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'TALB' (Album/Movie/Show title)                     'Top 40 jaarlijsten - 1978'
'TBPM' (BPM (beats per minute))                     '84.5'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex'
'TDRC' (Recording time)                             '1978'
'TIT2' (Title/songname/content description)         'Piece Of The Rock'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               "Mother's Finest"
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['funk rock', '70s', 'rock', 'hard rock', 'funk', 'classic rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.65 dB'
'TXXX:replaygain_track_peak'                        '0.369676'

========================== row from database ==========================
                                              'id'  1502711
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Mother_s Finest - Piece Of The Rock.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  204
                                           'genre'  rock-cppex
                                        'filesize'  6543366
                                           'mtime'  1620737425
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] Mother_s rock cppex
                                      'tag_artist'  Mother's Finest
                                     'tag_release'  Top 40 jaarlijsten - 1978
                                       'tag_title'  Piece Of The Rock
                                             'bpm'  84.5
                                    'search_title'  'of':2 'piece':1 'rock':4 'the':3
                                   'search_artist'  'finest':4 'mother':1 'mothers':3 's':2
                                  'search_release'  '1978':4 '40':2 'jaarlijsten':3 'top':1
                                     'search_rest'  '00poprockelectronic':1 'cppex':10 'files':5,6 'loose':3,4 'mother':7 'rock':9 's':8 'unsorted':2
                                    'search_combo'  '00poprockelectronic':13 '1978':12C '40':10C 'cppex':22 'files':17,18 'finest':8B 'jaarlijsten':11C 'loose':15,16 'mother':5B,19 'mothers':7B 'of':2A 'piece':1A 'rock':4A,21 's':6B,20 'the':3A 'top':9C 'unsorted':14
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['funk rock', '70s', 'rock', 'hard rock', 'funk', 'classic rock']
                                        'tag_date'  1978
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620737425.4763339  (2021-05-11 14:50:25)
                             'size'  6543366