======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '364'
                                          'artist'  'Al Haig'
                                     'text_people'  'Bud Powell'
                                         'release'  'radio jazz 13'
                                           'title'  'Celia'
                                           'quals'  ("['Q-HAP-3', 'Q-SYN-1', 'Q-UNU-1', 'Q-BUSY-3', 'Q-GRIT-1', 'Q-PLAY-2', "
 "'q-bass-4', 'Q-CHART-2', 'Q-JZFKS-2', 'Q-OLDST-2', 'q-drums-3', 'q-other-2', "
 "'q-piano-3', 'q-vocals-1', 'Q-HHRNBTT-1', 'Q-MIXBEAT-2', 'Q-LOCALNESS-2']")
                                      'lastfmtags'  "['julian lage group', 'piano', 'jazz', 'jazz piano', 'bebop']"
                                     'discogstags'  "['jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  '8'
                                            'date'  '1977'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '95.1'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM::eng'                                         ['OMMENT',
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 '2006 Remastered\r\nJapan']
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'TALB' (Album/Movie/Show title)                     'radio jazz 13'
'TBPM' (BPM (beats per minute))                     '95.1'
'TCOM' (Composer)                                   'Bud Powell'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDRC' (Recording time)                             '1977'
'TIT2' (Title/songname/content description)         'Celia'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Al Haig'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Interplay Records'
'TRCK' (Track number/Position in set)               '2/8'
'TXXX:INTENSITY'                                    'N'
'TXXX:JR_DATE'                                      'R_DAT'
'TXXX:PEAK LEVEL'                                   'EAK LEVEL'
'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'                                    '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:REPLAY GAIN'                                  'EPLAY GAIN'
'TXXX:TOOL NAME'                                    'OOL NAME'
'TXXX:TOOL VERSION'                                 'OOL VERS'
'TXXX:bpm'                                          ['94.0', '95.1', '94.0', 'PM']
'TXXX:discogstags'                                  'jazz'
'TXXX:lastfmtags'                                   ['julian lage group', 'piano', 'jazz', 'jazz piano', 'bebop']
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.34 dB'
'TXXX:replaygain_track_peak'                        '0.433415'

========================== row from database ==========================
                                              'id'  1482240
                                            'path'  /data/Music/Bulk/00poprockelectronic/radio jazz 13/Al Haig - celia.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  364
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  14655624
                                           'mtime'  1620563669
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic celia prerock jb unsorted
                                      'tag_artist'  Al Haig
                                     'tag_release'  radio jazz 13
                                       'tag_title'  Celia
                                             'bpm'  95.1
                                    'search_title'  'celia':1
                                   'search_artist'  'al':1 'haig':2
                                  'search_release'  'jazz':2 'radio':1
                                     'search_rest'  '00poprockelectronic':1 'celia':2 'jb':4 'prerock':3 'unsorted':5
                                    'search_combo'  '00poprockelectronic':6 'al':2B 'celia':1A,7 'haig':3B 'jazz':5C 'jb':9 'prerock':8 'radio':4C 'unsorted':10
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-3', 'Q-MIXBEAT-2', 'Q-OLDST-2', 'Q-GRIT-1', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-CHART-2', 'q-drums-3', 'Q-SYN-1', 'q-other-2', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-4']
                                      'lastfmtags'  ['julian lage group', 'piano', 'jazz', 'jazz piano', 'bebop']
                                        'tag_date'  1977
                                     'discogstags'  ['jazz']

============================== file details ==============================
                                           'mtime'  1620563668.7727723  (2021-05-09 14:34:28)
                             'size'  14655624