======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '179'
                                          'artist'  'P Pares'
                                     'text_people'  ''
                                         'release'  'Southern 45 rpm 1964 MQ 45-742'
                                           'title'  'Test Tubes'
                                           '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-2', 'q-grit-1', 'q-play-3', "
 "'q-chart-2', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1964'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '125.59'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Southern 45 rpm 1964 MQ 45-742'
'TBPM' (BPM (beats per minute))                     '125.59'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1964'
'TIT2' (Title/songname/content description)         'Test Tubes'
'TKEY' (Initial key)                                '5A'
'TLEN' (Length)                                     '179000'
'TPE1' (Lead performer(s)/Soloist(s))               'P Pares'
'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:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+2.73 dB'
'TXXX:replaygain_track_peak'                        '0.877735'

========================== row from database ==========================
                                              'id'  1532608
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/southern 78_s & 45_s - 1960-1964/19 Test Tubes (P Pares).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  179
                                           'genre'  prerock-unsorted
                                        'filesize'  2869248
                                           'mtime'  1621698439
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country southern 78_s & 45_s 1960 (P Pares) prerock unsorted
                                      'tag_artist'  P Pares
                                     'tag_release'  Southern 45 rpm 1964 MQ 45-742
                                       'tag_title'  Test Tubes
                                             'bpm'  125.59
                                    'search_title'  'test':1 'tubes':2
                                   'search_artist'  'p':1 'pares':2
                                  'search_release'  '1964':4 '45':2,6 '45742':8 '742':7 'mq':5 'rpm':3 'southern':1
                                     'search_rest'  '1960':10 '45':8 '78':6 'country':4 'exotica':2 'jazz':1 'oldies':3 'p':11,12 'pares':13,14 'prerock':15 's':7,9 'southern':5 'unsorted':16
                                    'search_combo'  '1960':22 '1964':8C '45':6C,10C,20 '45742':12C '742':11C '78':18 'country':16 'exotica':14 'jazz':13 'mq':9C 'oldies':15 'p':3B,23,24 'pares':4B,25,26 'prerock':27 'rpm':7C 's':19,21 'southern':5C,17 'test':1A 'tubes':2A 'unsorted':28
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-2', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1964
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621698438.8316474  (2021-05-22 17:47:18)
                             'size'  2869248