======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '148'
                                          'artist'  'Captain Beefheart & His Magic Band'
                                     'text_people'  ''
                                         'release'  'Safe as Milk'
                                           'title'  'Yellow Brick Road'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
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                                      'lastfmtags'  "['blues', 'avant garde', 'psychedelic', 'experimental', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  '19'
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'electronic-experimental'
                                             'bpm'  '99.8'
                                             'key'  '9B'
                                        'acoustid'  'e92ecdd0-b1c5-458f-b84d-df909c36e144'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM::eng'                                         'ExactAudioCopy v0.95b4'
'COMM:iTunNORM:eng'                                 (' 00001D53 00000BB6 0000E8FF 000054E9 00019AB6 0001C387 0000821B 00008307 '
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'COMM:iTunPGAP:eng'                                 '0/'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 000009CC 000000000063CC24 00000000 0036429D 00000000 '
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'COMM:iTunes_CDDB_1:eng'                            '1510B113+320637+19+150+10310+22315+34092+45507+61357+75417+86540+98865+113007+122722+133770+151945+170960+202227+224017+241692+253965+287147'
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'TBPM' (BPM (beats per minute))                     '99.8'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental'
'TDOR' (Original release time)                      '1967'
'TDRC' (Recording time)                             '1999'
'TENC' (Encoded by)                                 'iTunes 12.4.1.6'
'TIT2' (Title/songname/content description)         'Yellow Brick Road'
'TKEY' (Initial key)                                '9B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Captain Beefheart & His Magic Band'
'TPE2' (Band/orchestra/accompaniment)               'Captain Beefheart & His Magic Band'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Buddha Records'
'TRCK' (Track number/Position in set)               '7/19'
'TSO2'                                              'Captain Beefheart & His Magic Band'
'TSOP' (Performer sort order)                       'Captain Beefheart & His Magic Band'
'TXXX:ASIN'                                         'B00000J7A2'
'TXXX:Acoustid Id'                                  'e92ecdd0-b1c5-458f-b84d-df909c36e144'
'TXXX:BARCODE'                                      '744659960529'
'TXXX:CATALOGNUMBER'                                '7446599605-2'
'TXXX:MusicBrainz Album Artist Id'                  '8dcd04e4-7695-4d80-bae9-1d7d680a38ef'
'TXXX:MusicBrainz Album Id'                         'bda63673-86e4-36b0-bd5e-aaab1fc98dbe'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '8dcd04e4-7695-4d80-bae9-1d7d680a38ef'
'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'                                   ['blues', 'avant garde', 'psychedelic', 'experimental', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '2'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.07 dB'
'TXXX:replaygain_track_peak'                        '0.365636'
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========================== row from database ==========================
                                              'id'  1376031
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Captain Beefheart & His Magic Band - Safe as Milk/07 Yellow Brick Road.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  148
                                           'genre'  electronic-experimental
                                        'filesize'  3620440
                                           'mtime'  1622801426
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 07 electronic experimental
                                      'tag_artist'  Captain Beefheart & His Magic Band
                                     'tag_release'  Safe as Milk
                                       'tag_title'  Yellow Brick Road
                                             'bpm'  99.8
                                    'search_title'  'brick':2 'road':3 'yellow':1
                                   'search_artist'  'band':5 'beefheart':2 'captain':1 'his':3 'magic':4
                                  'search_release'  'as':2 'milk':3 'safe':1
                                     'search_rest'  'electronic':1 'experimental':2
                                    'search_combo'  'as':10C 'band':8B 'beefheart':5B 'brick':2A 'captain':4B 'electronic':12 'experimental':13 'his':6B 'magic':7B 'milk':11C 'road':3A 'safe':9C 'yellow':1A
                                    'tag_tracknum'  7
                                      'num_images'  1
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['blues', 'avant garde', 'psychedelic', 'experimental', 'rock']
                                        'tag_date'  1999
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1622801426.2237837  (2021-06-04 12:10:26)
                             'size'  3620440