======================== unified (from filesystem) ========================
                                         'bitrate'  '247.748'
                                        'duration'  '444'
                                          'artist'  'CAN'
                                     'text_people'  ''
                                         'release'  'Tago Mago'
                                           'title'  'Oh Yeah'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-2', "
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                                      'lastfmtags'  "['german', 'krautrock', 'progressive rock', 'psychedelic', 'experimental']"
                                     'discogstags'  "['krautrock', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '7'
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'electronic-experimental-early;mi-earlysynth-moog'
                                             'bpm'  '139.8'
                                             'key'  '6A'
                                        'acoustid'  '4f94f9ac-727a-4143-bcd5-4ed8e5e7f5ae'
rest: ''

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'TBPM' (BPM (beats per minute))                     '139.8'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-experimental-early', 'mi-earlysynth-moog']
'TDOR' (Original release time)                      '1971'
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         'Oh Yeah'
'TKEY' (Initial key)                                '6A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'CAN'
'TPE2' (Band/orchestra/accompaniment)               'CAN'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'SomeWax'
'TRCK' (Track number/Position in set)               '3/7'
'TSO2'                                              'Can'
'TSOP' (Performer sort order)                       'Can'
'TSRC' (ISRC (international standard recording code))  'DEX170420603'
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'TXXX:BARCODE'                                      '4607016134277'
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'TXXX:MusicBrainz Album Id'                         'f832abbf-e465-4025-9b95-f5f51773e6f0'
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'TXXX:MusicBrainz Album Type'                       'album'
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'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['krautrock', 'rock']
'TXXX:lastfmtags'                                   ['german', 'krautrock', 'progressive rock', 'psychedelic', 'experimental']
'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'                        '+1.51 dB'
'TXXX:replaygain_track_peak'                        '1.033767'
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========================== row from database ==========================
                                              'id'  770600
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Early Moog & Synthesizer Music/[1971] Can - Tago Mago/03. Oh Yeah.mp3
                                         'working'  None
                                         'bitrate'  247
                                    'duration_sec'  444
                                           'genre'  electronic-experimental-early;mi-earlysynth-moog
                                        'filesize'  13771654
                                           'mtime'  1637329237
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Early Moog & Synthesizer Music [1971] Can 03. electronic experimental early;mi earlysynth moog
                                      'tag_artist'  CAN
                                     'tag_release'  Tago Mago
                                       'tag_title'  Oh Yeah
                                             'bpm'  139.8
                                    'search_title'  'oh':1 'yeah':2
                                   'search_artist'  'can':1
                                  'search_release'  'mago':2 'tago':1
                                     'search_rest'  '03':8,9 '1971':5,6 'can':7 'early':1,12,14 'earlysynth':16 'electronic':10 'experimental':11 'mi':13,15 'moog':2 'music':4 'synthesizer':3
                                    'search_combo'  '03':13,14 '1971':10,11 'can':3B,12 'early':6,17,19 'earlysynth':21 'electronic':15 'experimental':16 'mago':5C 'mi':18,20 'moog':7 'music':9 'oh':1A 'synthesizer':8 'tago':4C 'yeah':2A
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-3', 'q-other-3', 'Q-HAP-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['german', 'krautrock', 'progressive rock', 'psychedelic', 'experimental']
                                        'tag_date'  2004
                                     'discogstags'  ['krautrock', 'rock']

============================== file details ==============================
                                           'mtime'  1637329236.9030185  (2021-11-19 14:40:36)
                             'size'  13771654