======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '171'
                                          'artist'  'Henry Hall BBC Dance Orchestra'
                                     'text_people'  ''
                                         'release'  'Columbia CB 706'
                                           'title'  'God Bless You (vocal - Phyllis Robins)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', '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']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1934'
                                        'comments'  ''
                                           'genre'  'prerock-band'
                                             'bpm'  '137.292'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Columbia CB 706'
'TBPM' (BPM (beats per minute))                     '137.292'
'TCON' (Content type, a.k.a. Genre)                 'prerock-band'
'TDRC' (Recording time)                             '1934'
'TIT2' (Title/songname/content description)         'God Bless You (vocal - Phyllis Robins)'
'TKEY' (Initial key)                                '6A'
'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'                                       '3'
'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'                        '+2.12 dB'
'TXXX:replaygain_track_peak'                        '0.463699'

========================== row from database ==========================
                                              'id'  674716
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1934/Henry Hall BBC Dance Orchestra - God Bless You (vocal - Phyllis Robins) 6-1-1934.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  171
                                           'genre'  prerock-band
                                        'filesize'  3434290
                                           'mtime'  1620560239
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1934 1 1934 prerock band
                                      'tag_artist'  Henry Hall BBC Dance Orchestra
                                     'tag_release'  Columbia CB 706
                                       'tag_title'  God Bless You (vocal - Phyllis Robins)
                                             'bpm'  137.292
                                    'search_title'  'bless':2 'god':1 'phyllis':6 'robins':7,8 'vocal':4,5 'you':3
                                   'search_artist'  'bbc':3 'dance':4 'hall':2 'henry':1 'orchestra':5
                                  'search_release'  '706':3 'cb':2 'columbia':1
                                     'search_rest'  '00oldiepop':5 '1':7 '1934':6 'band':9 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':8
                                    'search_combo'  '00oldiepop':21 '1':23 '1934':22 '706':16C 'band':25 'bbc':11B 'bless':2A 'cb':15C 'columbia':14C 'country':20 'dance':12B 'exotica':18 'god':1A 'hall':10B 'henry':9B 'jazz':17 'oldies':19 'orchestra':13B 'phyllis':6A 'prerock':24 'robins':7A,8A 'vocal':4A,5A 'you':3A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  6A
                                           '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-2', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1934
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620560239.1595125  (2021-05-09 13:37:19)
                             'size'  3434290