======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '144'
                                          'artist'  'Rancid'
                                     'text_people'  ''
                                         'release'  'Essentials'
                                           'title'  'Detroit'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-3', 'q-play-2', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['ska punk', 'punk rock', 'rock', 'punk', 'ska']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '4'
                                            'date'  '2012'
                                        'comments'  ''
                                           'genre'  'rock-gr-punk;rock-gr-punk-ska'
                                             'bpm'  '106.756'
                                             'key'  '12B'
                                        'acoustid'  'a34be2e6-6821-4de6-b987-a64a7d7a2def'
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Essentials'
'TBPM' (BPM (beats per minute))                     '106.756'
'TCON' (Content type, a.k.a. Genre)                 ['rock-gr-punk', 'rock-gr-punk-ska']
'TDOR' (Original release time)                      '2012'
'TDRC' (Recording time)                             '2012'
'TIT2' (Title/songname/content description)         'Detroit'
'TKEY' (Initial key)                                '12B'
'TMED' (Media type)                                 '7" Vinyl'
'TPE1' (Lead performer(s)/Soloist(s))               'Rancid'
'TPE2' (Band/orchestra/accompaniment)               'Rancid'
'TPOS' (Part of a set)                              '2/47'
'TPUB' (Publisher)                                  'Pirates Press Records'
'TRCK' (Track number/Position in set)               '3/4'
'TSO2'                                              'Rancid'
'TSOP' (Performer sort order)                       'Rancid'
'TSST' (Set subtitle)                               'Rancid (1/4)'
'TXXX:Acoustid Id'                                  'a34be2e6-6821-4de6-b987-a64a7d7a2def'
'TXXX:CATALOGNUMBER'                                'PPR070'
'TXXX:MusicBrainz Album Artist Id'                  '24f8d8a5-269b-475c-a1cb-792990b0b2ee'
'TXXX:MusicBrainz Album Id'                         '7ce220be-bdb7-4f8d-8be9-b4211026364c'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'compilation'
'TXXX:MusicBrainz Artist Id'                        '24f8d8a5-269b-475c-a1cb-792990b0b2ee'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['ska punk', 'punk rock', 'rock', 'punk', 'ska']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '3'
'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'                        '-0.67 dB'
'TXXX:replaygain_track_peak'                        '0.531475'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'926d1943-9fdd-45d2-8179-3462da3a7aa4')

========================== row from database ==========================
                                              'id'  1289328
                                            'path'  /data/Music/Bulk/00poprockelectronic/Rancid/Rancid/Rancid - Detroit - 03.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  144
                                           'genre'  rock-gr-punk;rock-gr-punk-ska
                                        'filesize'  2312505
                                           'mtime'  1636912600
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 03 rock gr punk;rock gr punk ska
                                      'tag_artist'  Rancid
                                     'tag_release'  Essentials
                                       'tag_title'  Detroit
                                             'bpm'  106.756
                                    'search_title'  'detroit':1
                                   'search_artist'  'rancid':1
                                  'search_release'  'essentials':1
                                     'search_rest'  '00poprockelectronic':1 'gr':3 'punk':4,6,8 'rock':2,5,7 'ska':9
                                    'search_combo'  '00poprockelectronic':4 'detroit':1A 'essentials':3C 'gr':6 'punk':7,9,11 'rancid':2B 'rock':5,8,10 'ska':12
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['ska punk', 'punk rock', 'rock', 'punk', 'ska']
                                        'tag_date'  2012
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636912599.9369044  (2021-11-14 18:56:39)
                             'size'  2312505