======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '124'
                                          'artist'  'John W Myers'
                                     'text_people'  ''
                                         'release'  'Columbia  5604'
                                           'title'  'Heart Bowed Down (Bohemian Girl)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1903'
                                        'comments'  ''
                                           'genre'  'prerock-band'
                                             'bpm'  '85.9'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'COMM:MusicMatch_Tempo:eng'                         'None'
'TALB' (Album/Movie/Show title)                     'Columbia  5604'
'TBPM' (BPM (beats per minute))                     '85.9'
'TCON' (Content type, a.k.a. Genre)                 'prerock-band'
'TDRC' (Recording time)                             '1903'
'TIT2' (Title/songname/content description)         'Heart Bowed Down (Bohemian Girl)'
'TKEY' (Initial key)                                '8A'
'TLEN' (Length)                                     '124000'
'TPE1' (Lead performer(s)/Soloist(s))               'John W Myers'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.04 dB'
'TXXX:replaygain_track_peak'                        '0.398774'

========================== row from database ==========================
                                              'id'  1467929
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1903/John W Myers - Heart Bowed Down (Bohemian Girl) 1903.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  124
                                           'genre'  prerock-band
                                        'filesize'  2526944
                                           'mtime'  1620558463
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1903 1903 prerock band
                                      'tag_artist'  John W Myers
                                     'tag_release'  Columbia  5604
                                       'tag_title'  Heart Bowed Down (Bohemian Girl)
                                             'bpm'  85.9
                                    'search_title'  'bohemian':4,5 'bowed':2 'down':3 'girl':6,7 'heart':1
                                   'search_artist'  'john':1 'myers':3 'w':2
                                  'search_release'  '5604':2 'columbia':1
                                     'search_rest'  '00oldiepop':5 '1903':6 'band':8 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':7
                                    'search_combo'  '00oldiepop':17 '1903':18 '5604':12C 'band':20 'bohemian':4A,5A 'bowed':2A 'columbia':11C 'country':16 'down':3A 'exotica':14 'girl':6A,7A 'heart':1A 'jazz':13 'john':8B 'myers':10B 'oldies':15 'prerock':19 'w':9B
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-1', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['q-vocals-4', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-1', 'q-bass-1', 'q-grit-1']
                                        'tag_date'  1903
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620558462.910525  (2021-05-09 13:07:42)
                             'size'  2526944