======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '165'
                                          'artist'  'Bromheads Jacket'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'No. 1 Groupie'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-2', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'garage rock', 'british', 'indie rock', 'rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  '22'
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-rock'
                                             'bpm'  '142.708'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            '530D4716+255093+22+150+11192'
'COMM:iTunes_CDDB_1:eng'                            '530D4716+255093+22+150+11192+23620+36492+50473+65241+74475+82415+95952+108401+122450+135350+140899+153031+166425+174140+187190+201373+214127+224706+236259+242738'
'COMM:iTunes_CDDB_TrackNumber:eng'                  '2'
'PRIV:AverageLevel:;\x10\x00\x00'                   PRIV(owner='AverageLevel', data=b';\x10\x00\x00')
'PRIV:PeakValue:Z}\x00\x00'                         PRIV(owner='PeakValue', data=b'Z}\x00\x00')
'TBPM' (BPM (beats per minute))                     '142.708'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-rock'
'TENC' (Encoded by)                                 'iTunes v6.0.4.2'
'TIT2' (Title/songname/content description)         'No. 1 Groupie'
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'Bromheads Jacket'
'TRCK' (Track number/Position in set)               '2/22'
'TXXX:Q-HAP'                                        '2'
'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'                                   ['indie', 'garage rock', 'british', 'indie rock', 'rock']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.93 dB'
'TXXX:replaygain_track_peak'                        '0.582321'

========================== row from database ==========================
                                              'id'  1285416
                                            'path'  /data/Music/Bulk/00poprockelectronic/Bromheads Jacket/Bromheads Jacket/Bromheads_Jacket_-_ No_1_Groupie.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  165
                                           'genre'  ifs-songwriter-indie-rock
                                        'filesize'  3317590
                                           'mtime'  1637330389
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Bromheads_Jacket_ _ No_1_Groupie ifs songwriter indie rock
                                      'tag_artist'  Bromheads Jacket
                                     'tag_release'  None
                                       'tag_title'  No. 1 Groupie
                                             'bpm'  142.708
                                    'search_title'  '1':3 'groupie':4 'no':1,2
                                   'search_artist'  'bromheads':1 'jacket':2
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 '1':5 'bromheads':2 'groupie':6 'ifs':7 'indie':9 'jacket':3 'no':4 'rock':10 'songwriter':8
                                    'search_combo'  '00poprockelectronic':7 '1':3A,11 'bromheads':5B,8 'groupie':4A,12 'ifs':13 'indie':15 'jacket':6B,9 'no':1A,2A,10 'rock':16 'songwriter':14
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'garage rock', 'british', 'indie rock', 'rock']
                                        'tag_date'  
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1637330389.2802577  (2021-11-19 14:59:49)
                             'size'  3317590