======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '405'
                                          'artist'  'Sonny Criss'
                                     'text_people'  'Dolo Coker'
                                         'release'  'radio jazz 13'
                                           'title'  'El Tiante'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-2', "
 "'Q-OLDST-2', 'Q-SYN-1', 'Q-BUSY-3', 'Q-GRIT-1', 'Q-PLAY-2', 'q-bass-4', "
 "'Q-CHART-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'Q-MIXBEAT-1']")
                                      'lastfmtags'  "['jazz', 'saxophone', 'bebop', 'hard bop', 'jazz saxophone']"
                                     'discogstags'  "['jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '1975'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '84.7'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         ['0',
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 '000583BC 0005F6D6',
 ' 00000000 00000210 0000072C 00000000011090C4 00000000 00F7214F 00000000 '
 '00000000 00000000 00000000 00000000 00000000',
 'Sonny Criss (as) Dolo Coker (p) Larry Gales (b) Jimmie Smith (d)\r\n'
 'Los Angeles, CA, October 20, 1975']
'COMM:iTunes_CDDB_1:eng'                            'B911D10E+342259+14+150+18571+50782+81161+98137+122779+136658+183054+214031+234667+261099+261906+285148+315935'
'COMM:iTunes_CDDB_TrackNumber:eng'                  '3'
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'TALB' (Album/Movie/Show title)                     'radio jazz 13'
'TBPM' (BPM (beats per minute))                     '84.7'
'TCOM' (Composer)                                   'Dolo Coker'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDRC' (Recording time)                             '1975'
'TENC' (Encoded by)                                 'iTunes v7.0.2.16'
'TIT1' (Content group description)                  '(Muse MR 5089)'
'TIT2' (Title/songname/content description)         'El Tiante'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Sonny Criss'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Import'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '1'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-MIXBEAT'                                    '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'jazz'
'TXXX:lastfmtags'                                   ['jazz', 'saxophone', 'bebop', 'hard bop', 'jazz saxophone']
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.18 dB'
'TXXX:replaygain_track_peak'                        '0.800902'

========================== row from database ==========================
                                              'id'  1482097
                                            'path'  /data/Music/Bulk/00poprockelectronic/radio jazz 13/Sonny Criss - el tiante.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  405
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  16206594
                                           'mtime'  1620541545
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic el tiante prerock jb unsorted
                                      'tag_artist'  Sonny Criss
                                     'tag_release'  radio jazz 13
                                       'tag_title'  El Tiante
                                             'bpm'  84.7
                                    'search_title'  'el':1 'tiante':2
                                   'search_artist'  'criss':2 'sonny':1
                                  'search_release'  'jazz':2 'radio':1
                                     'search_rest'  '00poprockelectronic':1 'el':2 'jb':5 'prerock':4 'tiante':3 'unsorted':6
                                    'search_combo'  '00poprockelectronic':7 'criss':4B 'el':1A,8 'jazz':6C 'jb':11 'prerock':10 'radio':5C 'sonny':3B 'tiante':2A,9 'unsorted':12
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'Q-MIXBEAT-1', 'Q-OLDST-2', 'Q-GRIT-1', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-CHART-2', 'q-drums-2', 'Q-SYN-1', 'q-other-3', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-4']
                                      'lastfmtags'  ['jazz', 'saxophone', 'bebop', 'hard bop', 'jazz saxophone']
                                        'tag_date'  1975
                                     'discogstags'  ['jazz']

============================== file details ==============================
                                           'mtime'  1620541545.4207134  (2021-05-09 08:25:45)
                             'size'  16206594