======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '141'
                                          'artist'  'Harry MacDonough'
                                     'text_people'  ''
                                         'release'  'Victor  4828'
                                           'title'  "Ain't You Coming Back To Old New Hampshire Molly"
                                           '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'  "['1900s', 'edison records', 'grammophon', '1890 1920', 'acoustic era']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1906'
                                        'comments'  ''
                                           'genre'  'prerock-vocal'
                                             'bpm'  '96.9'
                                             'key'  '12B'
                                        '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  4828'
'TBPM' (BPM (beats per minute))                     '96.9'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal'
'TDRC' (Recording time)                             '1906-11-10'
'TIT2' (Title/songname/content description)         "Ain't You Coming Back To Old New Hampshire Molly"
'TKEY' (Initial key)                                '12B'
'TLEN' (Length)                                     '141000'
'TPE1' (Lead performer(s)/Soloist(s))               'Harry MacDonough'
'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'                                   ['1900s', 'edison records', 'grammophon', '1890 1920', 'acoustic era']
'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'                        '+1.01 dB'
'TXXX:replaygain_track_peak'                        '0.681508'

========================== row from database ==========================
                                              'id'  1509158
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1906/Harry MacDonough - Ain_t You Coming Back To Old New Hampshire Molly 10-11-1906.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  141
                                           'genre'  prerock-vocal
                                        'filesize'  2883625
                                           'mtime'  1620665915
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1906 Ain_t 10 11 1906 prerock vocal
                                      'tag_artist'  Harry MacDonough
                                     'tag_release'  Victor  4828
                                       'tag_title'  Ain't You Coming Back To Old New Hampshire Molly
                                             'bpm'  96.9
                                    'search_title'  'ain':1 'aint':3 'back':6 'coming':5 'hampshire':10 'molly':11 'new':9 'old':8 't':2 'to':7 'you':4
                                   'search_artist'  'donough':4 'harry':1 'mac':3 'macdonough':2
                                  'search_release'  '4828':2 'victor':1
                                     'search_rest'  '00oldiepop':5 '1906':6 'ain':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':9 't':8 'vocal':10
                                    'search_combo'  '00oldiepop':22 '1906':23 '4828':17C 'ain':1A,24 'aint':3A 'back':6A 'coming':5A 'country':21 'donough':15B 'exotica':19 'hampshire':10A 'harry':12B 'jazz':18 'mac':14B 'macdonough':13B 'molly':11A 'new':9A 'old':8A 'oldies':20 'prerock':26 't':2A,25 'to':7A 'victor':16C 'vocal':27 'you':4A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  12B
                                           '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'  ['1900s', 'edison records', 'grammophon', '1890 1920', 'acoustic era']
                                        'tag_date'  1906
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620665915.083763  (2021-05-10 18:58:35)
                             'size'  2883625