======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '141'
                                          'artist'  'Harry MacDonough & Haydn Quartet'
                                     'text_people'  ''
                                         'release'  'Victor  4689'
                                           'title'  'When The Roll Is Called Up Yonder'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', '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-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['winter']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1906'
                                        'comments'  ''
                                           'genre'  'prerock-vocal'
                                             'bpm'  '85.5'
                                             'key'  '6B'
                                        '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)                     'Victor  4689'
'TBPM' (BPM (beats per minute))                     '85.5'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal'
'TDRC' (Recording time)                             '1906-06-30'
'TIT2' (Title/songname/content description)         'When The Roll Is Called Up Yonder'
'TKEY' (Initial key)                                '6B'
'TLEN' (Length)                                     '141000'
'TPE1' (Lead performer(s)/Soloist(s))               'Harry MacDonough & Haydn Quartet'
'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'                                   'winter'
'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'                        '+0.32 dB'
'TXXX:replaygain_track_peak'                        '0.693379'

========================== row from database ==========================
                                              'id'  1473652
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1906/Harry MacDonough & Haydn Quartet - When The Roll Is Called Up Yonder 30-6-1906.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  141
                                           'genre'  prerock-vocal
                                        'filesize'  2886238
                                           'mtime'  1620665915
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1906 30 1906 prerock vocal
                                      'tag_artist'  Harry MacDonough & Haydn Quartet
                                     'tag_release'  Victor  4689
                                       'tag_title'  When The Roll Is Called Up Yonder
                                             'bpm'  85.5
                                    'search_title'  'called':5 'is':4 'roll':3 'the':2 'up':6 'when':1 'yonder':7
                                   'search_artist'  'donough':6 'harry':1 'haydn':3 'mac':5 'macdonough':2 'quartet':4
                                  'search_release'  '4689':2 'victor':1
                                     'search_rest'  '00oldiepop':5 '1906':6 '30':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':8 'vocal':9
                                    'search_combo'  '00oldiepop':20 '1906':21 '30':22 '4689':15C 'called':5A 'country':19 'donough':13B 'exotica':17 'harry':8B 'haydn':10B 'is':4A 'jazz':16 'mac':12B 'macdonough':9B 'oldies':18 'prerock':23 'quartet':11B 'roll':3A 'the':2A 'up':6A 'victor':14C 'vocal':24 'when':1A 'yonder':7A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  6B
                                           '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'  ['winter']
                                        'tag_date'  1906
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620665914.7542593  (2021-05-10 18:58:34)
                             'size'  2886238