======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '174'
                                          'artist'  'Big City Orchestra'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'invalidchoir'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-UNU-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['industrial', 'noise', 'avant garde', 'experimental', 'old school "
 "industrial']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  '7'
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'electronic-experimental'
                                             'bpm'  '144.3'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'COMM:iTunes_CDDB_1:eng'                            '630D9F07+261734+7+150+43155+106306+130670+148347+229818+242897'
'COMM:iTunes_CDDB_TrackNumber:eng'                  '6'
'TBPM' (BPM (beats per minute))                     '144.3'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental'
'TDRC' (Recording time)                             '1995'
'TENC' (Encoded by)                                 'iTunes v2.0.3'
'TIT2' (Title/songname/content description)         'invalidchoir'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Big City Orchestra'
'TRCK' (Track number/Position in set)               '6/7'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '3'
'TXXX:lastfmtags'                                   ['industrial', 'noise', 'avant garde', 'experimental', 'old school industrial']
'TXXX:other'                                        'bigcityorchestra'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.31 dB'
'TXXX:replaygain_track_peak'                        '0.679520'

========================== row from database ==========================
                                              'id'  1366751
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Big City Orchestra - from SoundClick/mp3 [128k]/bigcityorchestra+invalidchoir.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  174
                                           'genre'  electronic-experimental
                                        'filesize'  2793238
                                           'mtime'  1621787095
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm from SoundClick mp3 [128k] bigcityorchestra+invalidchoir electronic experimental
                                      'tag_artist'  Big City Orchestra
                                     'tag_release'  None
                                       'tag_title'  invalidchoir
                                             'bpm'  144.3
                                    'search_title'  'invalidchoir':1
                                   'search_artist'  'big':1 'city':2 'orchestra':3
                                  'search_release'  
                                     'search_rest'  '128k':4,5 'bigcityorchestra':6 'click':11 'electronic':8 'experimental':9 'from':1 'invalidchoir':7 'mp3':3 'sound':10 'soundclick':2
                                    'search_combo'  '128k':8,9 'big':2B 'bigcityorchestra':10 'city':3B 'click':15 'electronic':12 'experimental':13 'from':5 'invalidchoir':1A,11 'mp3':7 'orchestra':4B 'sound':14 'soundclick':6
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-3', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['industrial', 'noise', 'avant garde', 'experimental', 'old school industrial']
                                        'tag_date'  1995
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621787095.3112469  (2021-05-23 18:24:55)
                             'size'  2793238