======================== unified (from filesystem) ========================
                                         'bitrate'  '239.127'
                                        'duration'  '471'
                                          'artist'  'Boards of Canada'
                                     'text_people'  ''
                                         'release'  'Music Has the Right to Children'
                                           'title'  'Happy Cycling'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'q-syn-3', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['electronica', 'idm', 'electronic', 'chillout', 'ambient']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '18'
                                      'tracktotal'  '18'
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'electronic-ambient'
                                             'bpm'  '100.009'
                                             'key'  '6A'
                                        'acoustid'  'c7a93458-ae2f-475e-a0db-3b85d111a456'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 0000021A 00000149 000015AA'
'COMM:iTunNORM:eng'                                 (' 0000021A 00000149 000015AA 00000D5B 00009515 00009515 00005D83 000057D6 '
 '0003A233 00052907')
'TALB' (Album/Movie/Show title)                     'Music Has the Right to Children'
'TBPM' (BPM (beats per minute))                     '100.009'
'TCON' (Content type, a.k.a. Genre)                 'electronic-ambient'
'TDOR' (Original release time)                      '1998'
'TDRC' (Recording time)                             '2004-04-06'
'TENC' (Encoded by)                                 'FairStars Audio Converter'
'TIT2' (Title/songname/content description)         'Happy Cycling'
'TKEY' (Initial key)                                '6A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Boards of Canada'
'TPE2' (Band/orchestra/accompaniment)               'Boards of Canada'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Warp'
'TRCK' (Track number/Position in set)               '18/18'
'TSO2'                                              'Boards of Canada'
'TSOP' (Performer sort order)                       'Boards of Canada'
'TSRC' (ISRC (international standard recording code))  'GBBPW9800078'
'TXXX:ASIN'                                         'B0001RVTWA'
'TXXX:Acoustid Id'                                  'c7a93458-ae2f-475e-a0db-3b85d111a456'
'TXXX:BARCODE'                                      '801061805524'
'TXXX:CATALOGNUMBER'                                'WARPCD55X'
'TXXX:MusicBrainz Album Artist Id'                  '69158f97-4c07-4c4e-baf8-4e4ab1ed666e'
'TXXX:MusicBrainz Album Id'                         'd4d64445-c1e0-32e6-82c6-01d98d70ae9e'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '69158f97-4c07-4c4e-baf8-4e4ab1ed666e'
'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:lastfmtags'                                   ['electronica', 'idm', 'electronic', 'chillout', 'ambient']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.44 dB'
'TXXX:replaygain_track_peak'                        '0.810260'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'760c78e2-cab9-4f4e-a733-8be7cecfe11b')

========================== row from database ==========================
                                              'id'  1340376
                                            'path'  /data/Music/Bulk/00poprockelectronic/Boards of Canada/[1998] Music Has The Right To Children/18 Happy Cycling.mp3
                                         'working'  None
                                         'bitrate'  239
                                    'duration_sec'  471
                                           'genre'  electronic-ambient
                                        'filesize'  14113931
                                           'mtime'  1636911070
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic [1998] The To 18 electronic ambient
                                      'tag_artist'  Boards of Canada
                                     'tag_release'  Music Has the Right to Children
                                       'tag_title'  Happy Cycling
                                             'bpm'  100.009
                                    'search_title'  'cycling':2 'happy':1
                                   'search_artist'  'boards':1 'canada':3 'of':2
                                  'search_release'  'children':6 'has':2 'music':1 'right':4 'the':3 'to':5
                                     'search_rest'  '00poprockelectronic':1 '18':6 '1998':2,3 'ambient':8 'electronic':7 'the':4 'to':5
                                    'search_combo'  '00poprockelectronic':12 '18':17 '1998':13,14 'ambient':19 'boards':3B 'canada':5B 'children':11C 'cycling':2A 'electronic':18 'happy':1A 'has':7C 'music':6C 'of':4B 'right':9C 'the':8C,15 'to':10C,16
                                    'tag_tracknum'  18
                                      'num_images'  1
                                             'key'  6A
                                           '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-2', 'q-drums-4', 'q-syn-3', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['electronica', 'idm', 'electronic', 'chillout', 'ambient']
                                        'tag_date'  2004
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636911070.2845306  (2021-11-14 18:31:10)
                             'size'  14113931