======================== unified (from filesystem) ========================
                                         'bitrate'  '205.575'
                                        'duration'  '60'
                                          'artist'  'Kenna Campbell & Mary Campbell'
                                     'text_people'  ''
                                         'release'  'Celtic Mouth Music'
                                           'title'  ("B'fhèarr mar a bha mi 'n uiridh (Horo! My Regret) / Fear an Dùin Mhóir (The "
 'Lord of Dunmore)')
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-UNU-3', 'Q-OLDST-1', "
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                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  '37'
                                            'date'  '1997'
                                        'comments'  ''
                                           'genre'  'loc-eur'
                                             'bpm'  '121.5'
                                             'key'  '12B'
                                        'acoustid'  '20fe4b2c-6397-4c4c-b620-1a209ea3f872'
rest: ''

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'PRIV:PeakValue:Py\x00\x00'                         PRIV(owner='PeakValue', data=b'Py\x00\x00')
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'TBPM' (BPM (beats per minute))                     '121.5'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'loc-eur'
'TDOR' (Original release time)                      '1997'
'TDRC' (Recording time)                             '1997'
'TIT2' (Title/songname/content description)         ("B'fhèarr mar a bha mi 'n uiridh (Horo! My Regret) / Fear an Dùin Mhóir (The "
 'Lord of Dunmore)')
'TKEY' (Initial key)                                '12B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Kenna Campbell & Mary Campbell'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Ellipsis Arts...'
'TRCK' (Track number/Position in set)               '10/37'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Campbell, Kenna & Campbell, Mary'
'TXXX:ASIN'                                         'B0000059U2'
'TXXX:Acoustid Id'                                  '20fe4b2c-6397-4c4c-b620-1a209ea3f872'
'TXXX:CATALOGNUMBER'                                'CD4070'
'TXXX:MusicBrainz Album Artist Id'                  '89ad4ac3-39f7-470e-963a-56509c546377'
'TXXX:MusicBrainz Album Id'                         '121bdc02-f649-4092-aac0-cb5a9b8f1621'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'compilation'
'TXXX:MusicBrainz Artist Id'                        'f4ed13d4-47f2-4ecb-ba32-32598f8fe25c/42fd517a-5a10-4a5e-8d32-8febf1f422f5'
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'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '4'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '3'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.77 dB'
'TXXX:replaygain_track_peak'                        '0.563561'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'7077cd4e-d7b9-42b1-a137-418bdf7bb3db')

========================== row from database ==========================
                                              'id'  1475838
                                            'path'  /data/Music/Bulk/00localcharacter/VA. World 1： Trad/Celtic Mouth Music (Ellipsis Arts, 1997) [202k VBR]/10-Horo! My RegretThe Lord Of Dunmore  .mp3
                                         'working'  None
                                         'bitrate'  205
                                    'duration_sec'  60
                                           'genre'  loc-eur
                                        'filesize'  1554356
                                           'mtime'  1620536158
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter VA. World 1： Trad (Ellipsis Arts, 1997) [202k VBR] 10 RegretThe Of loc eur
                                      'tag_artist'  Kenna Campbell & Mary Campbell
                                     'tag_release'  Celtic Mouth Music
                                       'tag_title'  B'fhèarr mar a bha mi 'n uiridh (Horo! My Regret) / Fear an Dùin Mhóir (The Lord of Dunmore)
                                             'bpm'  121.5
                                    'search_title'  'a':8 'an':20 'b':1,4 'bfhearr':3,6 'bha':9 'duin':21,22 'dunmore':29,30 'fear':19 'fhearr':2,5 'horo':14,15 'lord':27 'mar':7 'mhoir':23,24 'mi':10 'my':16 'n':11,12 'of':28 'regret':17,18 'the':25,26 'uiridh':13
                                   'search_artist'  'campbell':2 'kenna':1 'mary':3
                                  'search_release'  'celtic':1 'mouth':2 'music':3
                                     'search_rest'  '1':4,5,6 '1997':12,13 '202k':14,15 'arts':10,11 'ellipsis':8,9 'eur':21 'loc':20 'of':19 'regret':22 'regretthe':18 'the':23 'trad':7 'va':1,2 'vbr':16,17 'world':3
                                    'search_combo'  '1':40,41,42 '1997':48,49 '202k':50,51 'a':8A 'an':20A 'arts':46,47 'b':1A,4A 'bfhearr':3A,6A 'bha':9A 'campbell':32B 'celtic':34C 'duin':21A,22A 'dunmore':29A,30A 'ellipsis':44,45 'eur':57 'fear':19A 'fhearr':2A,5A 'horo':14A,15A 'kenna':31B 'loc':56 'lord':27A 'mar':7A 'mary':33B 'mhoir':23A,24A 'mi':10A 'mouth':35C 'music':36C 'my':16A 'n':11A,12A 'of':28A,55 'regret':17A,18A,58 'regretthe':54 'the':25A,26A,59 'trad':43 'uiridh':13A 'va':37,38 'vbr':52,53 'world':39
                                    'tag_tracknum'  10
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-4', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-3', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-1', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1997
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620536158.3422356  (2021-05-09 06:55:58)
                             'size'  1554356