======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '460'
                                          'artist'  'Four Tet'
                                     'text_people'  ''
                                         'release'  'Dialogue'
                                           'title'  'Calamine'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['electronica', 'instrumental', 'idm', 'electronic', 'experimental']"
                                     'discogstags'  "['electronic', 'leftfield', 'future jazz', 'downtempo', 'experimental']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  '12'
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'electronic-experimental;electronic-unsorted'
                                             'bpm'  '148'
                                             'key'  '1A'
                                        'acoustid'  '6ac91c35-f717-48c2-b508-b16adef6419f'
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Dialogue'
'TBPM' (BPM (beats per minute))                     '148'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-experimental', 'electronic-unsorted', 'electronic-unsorted']
'TDOR' (Original release time)                      '1999'
'TDRC' (Recording time)                             '1999-05-29'
'TIT2' (Title/songname/content description)         'Calamine'
'TKEY' (Initial key)                                '1A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Four Tet'
'TPE2' (Band/orchestra/accompaniment)               'Four Tet'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Output Recordings'
'TRCK' (Track number/Position in set)               '8/12'
'TSO2'                                              'Four Tet'
'TSOP' (Performer sort order)                       'Four Tet'
'TXXX:ASIN'                                         'B00002541J'
'TXXX:Acoustid Id'                                  '6ac91c35-f717-48c2-b508-b16adef6419f'
'TXXX:Artists'                                      'Four Tet'
'TXXX:BARCODE'                                      '5019148620495'
'TXXX:CATALOGNUMBER'                                'OPRCD21'
'TXXX:MusicBrainz Album Artist Id'                  '3bcff06f-675a-451f-9075-99e8657047e8'
'TXXX:MusicBrainz Album Id'                         '0333576d-4bdd-4d3e-ab98-7717352f41ca'
'TXXX:MusicBrainz Album Release Country'            'GB'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '3bcff06f-675a-451f-9075-99e8657047e8'
'TXXX:MusicBrainz Release Group Id'                 '24d31ece-37c0-3495-be36-b3e98da2eb67'
'TXXX:MusicBrainz Release Track Id'                 'd6fdb1ae-f135-31a5-9fcb-de6c357b1347'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['electronic', 'leftfield', 'future jazz', 'downtempo', 'experimental']
'TXXX:lastfmtags'                                   ['electronica', 'instrumental', 'idm', 'electronic', 'experimental']
'TXXX:originalyear'                                 '1999'
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'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'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.54 dB'
'TXXX:replaygain_track_peak'                        '0.538183'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'c73efab8-da2f-4c22-bf0d-7aaee201c15e')

========================== row from database ==========================
                                              'id'  1336774
                                            'path'  /data/Music/Bulk/00poprockelectronic/Four Tet/dialogue/four tet - dialogue - 08 - calamine.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  460
                                           'genre'  electronic-experimental;electronic-unsorted
                                        'filesize'  11062412
                                           'mtime'  1621509071
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic dialogue four tet dialogue 08 calamine electronic experimental;electronic unsorted
                                      'tag_artist'  Four Tet
                                     'tag_release'  Dialogue
                                       'tag_title'  Calamine
                                             'bpm'  148.0
                                    'search_title'  'calamine':1
                                   'search_artist'  'four':1 'tet':2
                                  'search_release'  'dialogue':1
                                     'search_rest'  '00poprockelectronic':1 'calamine':5 'dialogue':2 'electronic':6,8,10 'experimental':7,9 'four':3 'tet':4 'unsorted':11
                                    'search_combo'  '00poprockelectronic':5 'calamine':1A,9 'dialogue':4C,6 'electronic':10,12,14 'experimental':11,13 'four':2B,7 'tet':3B,8 'unsorted':15
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['electronica', 'instrumental', 'idm', 'electronic', 'experimental']
                                        'tag_date'  1999
                                     'discogstags'  ['electronic', 'leftfield', 'future jazz', 'downtempo', 'experimental']

============================== file details ==============================
                                           'mtime'  1621509071.3535173  (2021-05-20 13:11:11)
                             'size'  11062412