======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '138'
                                          'artist'  'Arthur Collins'
                                     'text_people'  ''
                                         'release'  'Columbia 33076'
                                           'title'  "What's The Use Of Loving 1907 Columbia"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', "
 "'q-play-2', 'Q-JZFKS-1', 'Q-OLDST-1', 'q-chart-1', 'q-drums-1', 'q-other-2', "
 "'q-piano-1', 'q-vocals-4', 'Q-HHRNBTT-1', 'q-mixbeat-1', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  "['minstrel', 'all', 'real oldies', 'ragtime', '1900s']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1907'
                                        'comments'  ''
                                           'genre'  'prerock-vocal'
                                             'bpm'  '138.4'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'TALB' (Album/Movie/Show title)                     'Columbia 33076'
'TBPM' (BPM (beats per minute))                     '138.4'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal'
'TDRC' (Recording time)                             '1907'
'TIT2' (Title/songname/content description)         "What's The Use Of Loving 1907 Columbia"
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Arthur Collins'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['minstrel', 'all', 'real oldies', 'ragtime', '1900s']
'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'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.79 dB'
'TXXX:replaygain_track_peak'                        '0.451859'

========================== row from database ==========================
                                              'id'  1508289
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1907/Arthur Collins - What_s The Use Of Loving If You Can_t Love All The Time 1907 Columbia.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  138
                                           'genre'  prerock-vocal
                                        'filesize'  2804556
                                           'mtime'  1630254678
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop What_s If You Can_t Love All Time prerock vocal
                                      'tag_artist'  Arthur Collins
                                     'tag_release'  Columbia 33076
                                       'tag_title'  What's The Use Of Loving 1907 Columbia
                                             'bpm'  138.4
                                    'search_title'  '1907':8 'columbia':9 'loving':7 'of':6 's':2 'the':4 'use':5 'what':1 'whats':3
                                   'search_artist'  'arthur':1 'collins':2
                                  'search_release'  '33076':2 'columbia':1
                                     'search_rest'  '00oldiepop':5 'all':13 'can':10 'country':4 'exotica':2 'if':8 'jazz':1 'love':12 'oldies':3 'prerock':15 's':7 't':11 'time':14 'vocal':16 'what':6 'you':9
                                    'search_combo'  '00oldiepop':18 '1907':8A '33076':13C 'all':26 'arthur':10B 'can':23 'collins':11B 'columbia':9A,12C 'country':17 'exotica':15 'if':21 'jazz':14 'love':25 'loving':7A 'of':6A 'oldies':16 'prerock':28 's':2A,20 't':24 'the':4A 'time':27 'use':5A 'vocal':29 'what':1A,19 'whats':3A 'you':22
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  10A
                                           '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-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['minstrel', 'all', 'real oldies', 'ragtime', '1900s']
                                        'tag_date'  1907
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1630254677.6121957  (2021-08-29 18:31:17)
                             'size'  2804556