======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '133'
                                          'artist'  'The Juveniles'
                                     'text_people'  ''
                                         'release'  'Explosive Doowops - Vol. 01 (Bb 55021)'
                                           'title'  'Beat In My Heart'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-2', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-2', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['trip in tyme vol 2', 'doo wop', 'bo diddley cover', '60s garage', 'trip in "
 "time vol 2']")
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '23'
                                      'tracktotal'  ''
                                            'date'  '1960'
                                        'comments'  ''
                                           'genre'  'rock-pop-early-doowop'
                                             'bpm'  '98.8'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Explosive Doowops - Vol. 01 (Bb 55021)'
'TBPM' (BPM (beats per minute))                     '98.8'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop-early-doowop'
'TDRC' (Recording time)                             '1960'
'TIT2' (Title/songname/content description)         'Beat In My Heart'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Juveniles'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '23'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['trip in tyme vol 2',
 'doo wop',
 'bo diddley cover',
 '60s garage',
 'trip in time vol 2']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.57 dB'
'TXXX:replaygain_track_peak'                        '0.416199'

========================== row from database ==========================
                                              'id'  948801
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/va - Explosive Doowops - Vol. 01 (Bb 55021)/23 - The Juveniles - Beat In My Heart.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  133
                                           'genre'  rock-pop-early-doowop
                                        'filesize'  2134577
                                           'mtime'  1620736406
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm va 23 rock pop early doowop
                                      'tag_artist'  The Juveniles
                                     'tag_release'  Explosive Doowops - Vol. 01 (Bb 55021)
                                       'tag_title'  Beat In My Heart
                                             'bpm'  98.8
                                    'search_title'  'beat':1 'heart':4 'in':2 'my':3
                                   'search_artist'  'juveniles':2 'the':1
                                  'search_release'  '55021':7,8 'bb':5,6 'doowops':2 'explosive':1 'vol':3,4
                                     'search_rest'  '23':2 'doowop':6 'early':5 'pop':4 'rock':3 'va':1
                                    'search_combo'  '23':16 '55021':13C,14C 'bb':11C,12C 'beat':1A 'doowop':20 'doowops':8C 'early':19 'explosive':7C 'heart':4A 'in':2A 'juveniles':6B 'my':3A 'pop':18 'rock':17 'the':5B 'va':15 'vol':9C,10C
                                    'tag_tracknum'  23
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-1', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['trip in tyme vol 2', 'doo wop', 'bo diddley cover', '60s garage', 'trip in time vol 2']
                                        'tag_date'  1960
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620736406.1738737  (2021-05-11 14:33:26)
                             'size'  2134577