======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '276'
                                          'artist'  "Francis Lai - (F. 'Bilitis')"
                                     'text_people'  ''
                                         'release'  'Bilitis  OST'
                                           'title'  "Rainbow ('77)"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  '11'
                                            'date'  '1977'
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '126.6'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         'therevivalblog.blogspot.com'
'COMM:iTunNORM:eng'                                 (' 000001BD 0000019B 000013F4 000016EC 0001473E 000321F0 00004DB3 00006BEB '
 '0002719C 0003D482')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000AD4 0000000000B9BB9C 00000000 006507AD 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_1:eng'                            '9208930B+164796+11+150+15657+32520+43259+54662+60299+80332+101235+104319+121772+142473'
'COMM:iTunes_CDDB_TrackNumber:eng'                  '10'
'TALB' (Album/Movie/Show title)                     'Bilitis  OST'
'TBPM' (BPM (beats per minute))                     '126.6'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TDRC' (Recording time)                             '1977'
'TENC' (Encoded by)                                 'iTunes v7.6.1'
'TIT2' (Title/songname/content description)         "Rainbow ('77)"
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               "Francis Lai - (F. 'Bilitis')"
'TRCK' (Track number/Position in set)               '10/11'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.08 dB'
'TXXX:replaygain_track_peak'                        '0.932951'

========================== row from database ==========================
                                              'id'  1525161
                                            'path'  /data/Music/Bulk/00popandrock-swing-funk-soul/EASY Instr 70_s/Francis Lai - (F. _Bilitis_) - Rainbow (_77).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  276
                                           'genre'  funk or soul
                                        'filesize'  6628284
                                           'mtime'  1628357826
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock swing funk soul EASY Instr 70_s _Bilitis_) (_77) funk or soul
                                      'tag_artist'  Francis Lai - (F. 'Bilitis')
                                     'tag_release'  Bilitis  OST
                                       'tag_title'  Rainbow ('77)
                                             'bpm'  126.6
                                    'search_title'  '77':2,3 'rainbow':1
                                   'search_artist'  'bilitis':5,6 'f':3,4 'francis':1 'lai':2
                                  'search_release'  'bilitis':1 'ost':2
                                     'search_rest'  '70':6 '77':10,11 'bilitis':8,9 'easy':4 'funk':2 'instr':5 'or':12 's':7 'soul':3 'swing':1
                                    'search_combo'  '70':17 '77':2A,3A,21,22 'bilitis':8B,9B,10C,19,20 'easy':15 'f':6B,7B 'francis':4B 'funk':13 'instr':16 'lai':5B 'or':23 'ost':11C 'rainbow':1A 's':18 'soul':14 'swing':12
                                    'tag_tracknum'  10
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1977
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1628357825.6691723  (2021-08-07 19:37:05)
                             'size'  6628284