======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '522'
                                          'artist'  'Ensemble Resonanz/ Johannes Kalitzke'
                                     'text_people'  'Iannis Xenakis'
                                         'release'  'ensemble'
                                           'title'  'Ittidra'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'Q-PLAY-3', 'q-bass-1', 'q-busy-3', 'q-grit-2', "
 "'Q-PIANO-2', 'q-chart-1', 'q-drums-1', 'q-other-4', 'q-vocals-1', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  '6'
                                            'date'  '1996'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '85.8'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'COMM:iTunNORM:eng'                                 (' 00000352 00000339 00001DE3 00001838 00032D43 00036253 00006F60 00006FCB '
 '0004D0C1 0007C6D1')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000AF8 00000000015F82F8 00000000 00BF4001 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_IDs:eng'                          '6+727A6D5E27E2848502F5E0697B27AB1C+6375730'
'TALB' (Album/Movie/Show title)                     'ensemble'
'TBPM' (BPM (beats per minute))                     '85.8'
'TCOM' (Composer)                                   'Iannis Xenakis'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TDRC' (Recording time)                             '1996'
'TENC' (Encoded by)                                 'iTunes v7.6.2'
'TIT2' (Title/songname/content description)         'Ittidra'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Xenakis'
'TPE2' (Band/orchestra/accompaniment)               'Ensemble Resonanz/ Johannes Kalitzke'
'TRCK' (Track number/Position in set)               '6/6'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-UNU'                                        '1'
'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'                                      '4'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.32 dB'
'TXXX:replaygain_track_peak'                        '0.614655'

========================== row from database ==========================
                                              'id'  761776
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Xenakis_lots_of_recordings/06 Ittidra.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  522
                                           'genre'  electronic-unsorted
                                        'filesize'  12541039
                                           'mtime'  1636758610
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Xenakis_lots_of_recordings 06 electronic unsorted
                                      'tag_artist'  Ensemble Resonanz/ Johannes Kalitzke
                                     'tag_release'  ensemble
                                       'tag_title'  Ittidra
                                             'bpm'  85.8
                                    'search_title'  'ittidra':1
                                   'search_artist'  'ensemble':1 'johannes':4 'kalitzke':5 'resonanz':2,3
                                  'search_release'  'ensemble':1
                                     'search_rest'  'electronic':5 'lots':2 'of':3 'recordings':4 'unsorted':6 'xenakis':1
                                    'search_combo'  'electronic':12 'ensemble':2B,7C 'ittidra':1A 'johannes':5B 'kalitzke':6B 'lots':9 'of':10 'recordings':11 'resonanz':3B,4B 'unsorted':13 'xenakis':8
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-4', 'Q-HAP-2', 'Q-PLAY-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1996
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636758609.577311  (2021-11-13 00:10:09)
                             'size'  12541039