======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '160'
                                          'artist'  'Henry Hall BBC Dance Orchestra'
                                     'text_people'  ''
                                         'release'  'Columbia CB 586'
                                           'title'  "I'm One Of The Lads Of Valencia (v Les Allen & Burton Gillis)"
                                           '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'  '1933'
                                        'comments'  ''
                                           'genre'  'prerock-band'
                                             'bpm'  '116.857'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Columbia CB 586'
'TBPM' (BPM (beats per minute))                     '116.857'
'TCON' (Content type, a.k.a. Genre)                 'prerock-band'
'TDRC' (Recording time)                             '1933'
'TIT2' (Title/songname/content description)         "I'm One Of The Lads Of Valencia (v Les Allen & Burton Gillis)"
'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'                        '+1.52 dB'
'TXXX:replaygain_track_peak'                        '0.555139'

========================== row from database ==========================
                                              'id'  1503382
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1933/Henry Hall BBC Dance Orchestra - I_m One Of The Lads Of Valencia (v Les Allen & Burton Gillis) 14-3-1933.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  160
                                           'genre'  prerock-band
                                        'filesize'  3209010
                                           'mtime'  1620560089
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1933 I_m 14 3 1933 prerock band
                                      'tag_artist'  Henry Hall BBC Dance Orchestra
                                     'tag_release'  Columbia CB 586
                                       'tag_title'  I'm One Of The Lads Of Valencia (v Les Allen & Burton Gillis)
                                             'bpm'  116.857
                                    'search_title'  'allen':12 'burton':13 'gillis':14,15 'i':1 'im':3 'lads':7 'les':11 'm':2 'of':5 'one':4 'the':6 'v':9,10 'valencia':8
                                   'search_artist'  'bbc':3 'dance':4 'hall':2 'henry':1 'orchestra':5
                                  'search_release'  '586':3 'cb':2 'columbia':1
                                     'search_rest'  '00oldiepop':5 '1933':6 '3':9 'band':11 'country':4 'exotica':2 'i':7 'jazz':1 'm':8 'oldies':3 'prerock':10
                                    'search_combo'  '00oldiepop':28 '1933':29 '3':32 '586':23C 'allen':12A 'band':34 'bbc':18B 'burton':13A 'cb':22C 'columbia':21C 'country':27 'dance':19B 'exotica':25 'gillis':14A,15A 'hall':17B 'henry':16B 'i':1A,30 'im':3A 'jazz':24 'lads':7A 'les':11A 'm':2A,31 'of':5A 'oldies':26 'one':4A 'orchestra':20B 'prerock':33 'the':6A 'v':9A,10A 'valencia':8A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             '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'  1933
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620560088.9735281  (2021-05-09 13:34:48)
                             'size'  3209010