======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '172'
                                          'artist'  'Henry Hall BBC Dance Orchestra'
                                     'text_people'  ''
                                         'release'  'Columbia CB 716'
                                           'title'  'In Town Tonight'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1934'
                                        'comments'  ''
                                           'genre'  'prerock-band'
                                             'bpm'  '115.195'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Columbia CB 716'
'TBPM' (BPM (beats per minute))                     '115.195'
'TCON' (Content type, a.k.a. Genre)                 'prerock-band'
'TDRC' (Recording time)                             '1934'
'TIT2' (Title/songname/content description)         'In Town Tonight'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Henry Hall BBC Dance Orchestra'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+1.51 dB'
'TXXX:replaygain_track_peak'                        '0.472398'

========================== row from database ==========================
                                              'id'  677039
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1934/Henry Hall BBC Dance Orchestra - In Town Tonight 15-2-1934.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  172
                                           'genre'  prerock-band
                                        'filesize'  3454770
                                           'mtime'  1620560239
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1934 15 2 1934 prerock band
                                      'tag_artist'  Henry Hall BBC Dance Orchestra
                                     'tag_release'  Columbia CB 716
                                       'tag_title'  In Town Tonight
                                             'bpm'  115.195
                                    'search_title'  'in':1 'tonight':3 'town':2
                                   'search_artist'  'bbc':3 'dance':4 'hall':2 'henry':1 'orchestra':5
                                  'search_release'  '716':3 'cb':2 'columbia':1
                                     'search_rest'  '00oldiepop':5 '1934':6 '2':7 'band':9 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':8
                                    'search_combo'  '00oldiepop':16 '1934':17 '2':18 '716':11C 'band':20 'bbc':6B 'cb':10C 'columbia':9C 'country':15 'dance':7B 'exotica':13 'hall':5B 'henry':4B 'in':1A 'jazz':12 'oldies':14 'orchestra':8B 'prerock':19 'tonight':3A 'town':2A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1934
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620560239.3573453  (2021-05-09 13:37:19)
                             'size'  3454770