======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '940'
                                          'artist'  "Charles Bruck - Orchestre Philharmonique de l'O.R.T.F."
                                     'text_people'  'Iannis Xenakis'
                                         'release'  'Orchestra'
                                           'title'  'Nomos Gamma'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '6'
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '127.9'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'COMM:iTunNORM:eng'                                 (' 0000013C 000001CE 00003123 00007B19 00042468 0004DBFA 00007F81 00007FCE '
 '0002DB05 0007E7AC')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000828 000000000278D7C8 00000000 01585979 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_IDs:eng'                          '6+8EFBC87D741EDA0DCFEA78E365E1021E+2931412'
'TALB' (Album/Movie/Show title)                     'Orchestra'
'TBPM' (BPM (beats per minute))                     '127.9'
'TCOM' (Composer)                                   'Iannis Xenakis'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TDRC' (Recording time)                             '2003'
'TENC' (Encoded by)                                 'iTunes v7.6.2'
'TIT2' (Title/songname/content description)         'Nomos Gamma'
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'Xenakis'
'TPE2' (Band/orchestra/accompaniment)               "Charles Bruck - Orchestre Philharmonique de l'O.R.T.F."
'TPOS' (Part of a set)                              '1/2'
'TRCK' (Track number/Position in set)               '3/6'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.95 dB'
'TXXX:replaygain_track_peak'                        '0.704561'

========================== row from database ==========================
                                              'id'  771462
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Xenakis_lots_of_recordings/1-03 Nomos Gamma.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  940
                                           'genre'  electronic-unsorted
                                        'filesize'  22574595
                                           'mtime'  1636758611
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Xenakis_lots_of_recordings 1 03 electronic unsorted
                                      'tag_artist'  Charles Bruck - Orchestre Philharmonique de l'O.R.T.F.
                                     'tag_release'  Orchestra
                                       'tag_title'  Nomos Gamma
                                             'bpm'  127.9
                                    'search_title'  'gamma':2 'nomos':1
                                   'search_artist'  'bruck':2 'charles':1 'de':5 'f':10 'l':6 'lortf':11 'o':7 'orchestre':3 'philharmonique':4 'r':8 't':9
                                  'search_release'  'orchestra':1
                                     'search_rest'  '1':5 'electronic':6 'lots':2 'of':3 'recordings':4 'unsorted':7 'xenakis':1
                                    'search_combo'  '1':19 'bruck':4B 'charles':3B 'de':7B 'electronic':20 'f':12B 'gamma':2A 'l':8B 'lortf':13B 'lots':16 'nomos':1A 'o':9B 'of':17 'orchestra':14C 'orchestre':5B 'philharmonique':6B 'r':10B 'recordings':18 't':11B 'unsorted':21 'xenakis':15
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  2003
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636758610.8191822  (2021-11-13 00:10:10)
                             'size'  22574595