======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '185'
                                          'artist'  'Carroll Gibbons'
                                     'text_people'  ''
                                         'release'  'HMV BD- 110'
                                           'title'  'His Majesty The Baby (New Mayfair Dance Orchestra v - Jack Plant)'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['piano', 'jazz', 'female vocalists', '1401fh', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1935'
                                        'comments'  ''
                                           'genre'  'prerock-band'
                                             'bpm'  '139.754'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'HMV BD- 110'
'TBPM' (BPM (beats per minute))                     '139.754'
'TCON' (Content type, a.k.a. Genre)                 'prerock-band'
'TDRC' (Recording time)                             '1935'
'TIT2' (Title/songname/content description)         'His Majesty The Baby (New Mayfair Dance Orchestra v - Jack Plant)'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Carroll Gibbons'
'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'                                   ['piano', 'jazz', 'female vocalists', '1401fh', 'swing']
'TXXX:q-bass'                                       '4'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.52 dB'
'TXXX:replaygain_track_peak'                        '0.652874'

========================== row from database ==========================
                                              'id'  1447042
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1935/Carroll Gibbons - His Majesty The Baby (New Mayfair Dance Orchestra) vocal - Jack Plant 10-1-1935.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  185
                                           'genre'  prerock-band
                                        'filesize'  3702578
                                           'mtime'  1620560330
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1935 Orchestra) vocal 1935 prerock band
                                      'tag_artist'  Carroll Gibbons
                                     'tag_release'  HMV BD- 110
                                       'tag_title'  His Majesty The Baby (New Mayfair Dance Orchestra v - Jack Plant)
                                             'bpm'  139.754
                                    'search_title'  'baby':4 'dance':8 'his':1 'jack':11 'majesty':2 'mayfair':7 'new':5,6 'orchestra':9 'plant':12,13 'the':3 'v':10
                                   'search_artist'  'carroll':1 'gibbons':2
                                  'search_release'  '110':4 'bd':2,3 'hmv':1
                                     'search_rest'  '00oldiepop':5 '1935':6 'band':11 'country':4 'exotica':2 'jazz':1 'oldies':3 'orchestra':7,8 'prerock':10 'vocal':9
                                    'search_combo'  '00oldiepop':24 '110':19C '1935':25 'baby':4A 'band':30 'bd':17C,18C 'carroll':14B 'country':23 'dance':8A 'exotica':21 'gibbons':15B 'his':1A 'hmv':16C 'jack':11A 'jazz':20 'majesty':2A 'mayfair':7A 'new':5A,6A 'oldies':22 'orchestra':9A,26,27 'plant':12A,13A 'prerock':29 'the':3A 'v':10A 'vocal':28
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-4', 'q-grit-1']
                                      'lastfmtags'  ['piano', 'jazz', 'female vocalists', '1401fh', 'swing']
                                        'tag_date'  1935
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620560329.856519  (2021-05-09 13:38:49)
                             'size'  3702578