======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '167'
                                          'artist'  'Byron G Harlan'
                                     'text_people'  ''
                                         'release'  'Columbia   346 (3463)'
                                           'title'  'Good Old USA'
                                           '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-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['gramophone', 'real oldies', 'age of steam', 'all', 'title is a full "
 "sentence']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1906'
                                        'comments'  ''
                                           'genre'  'prerock-vocal'
                                             'bpm'  '108.3'
                                             '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   346 (3463)'
'TBPM' (BPM (beats per minute))                     '108.3'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal'
'TDRC' (Recording time)                             '1906-09-15'
'TIT2' (Title/songname/content description)         'Good Old USA'
'TKEY' (Initial key)                                '10A'
'TLEN' (Length)                                     '167000'
'TPE1' (Lead performer(s)/Soloist(s))               'Byron G Harlan'
'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'                                   ['gramophone', 'real oldies', 'age of steam', 'all', 'title is a full sentence']
'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'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.35 dB'
'TXXX:replaygain_track_peak'                        '0.816407'

========================== row from database ==========================
                                              'id'  1475074
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1906/Byron G Harlan - Good Old USA 15-9-1906.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  167
                                           'genre'  prerock-vocal
                                        'filesize'  3412079
                                           'mtime'  1620665909
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1906 15 9 1906 prerock vocal
                                      'tag_artist'  Byron G Harlan
                                     'tag_release'  Columbia   346 (3463)
                                       'tag_title'  Good Old USA
                                             'bpm'  108.3
                                    'search_title'  'good':1 'old':2 'usa':3
                                   'search_artist'  'byron':1 'g':2 'harlan':3
                                  'search_release'  '346':2 '3463':3,4 'columbia':1
                                     'search_rest'  '00oldiepop':5 '1906':6 '9':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':8 'vocal':9
                                    'search_combo'  '00oldiepop':15 '1906':16 '346':8C '3463':9C,10C '9':17 'byron':4B 'columbia':7C 'country':14 'exotica':12 'g':5B 'good':1A 'harlan':6B 'jazz':11 'old':2A 'oldies':13 'prerock':18 'usa':3A 'vocal':19
                                    '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-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['gramophone', 'real oldies', 'age of steam', 'all', 'title is a full sentence']
                                        'tag_date'  1906
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620665908.8852208  (2021-05-10 18:58:28)
                             'size'  3412079