======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '202'
                                          'artist'  'Royal Air Force Dance Orchestra'
                                     'text_people'  ''
                                         'release'  'Decca F 8261'
                                           'title'  "I've Got A Gal In Kalamazoo (vocal - Sid Colin)"
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1943'
                                        'comments'  ''
                                           'genre'  'prerock-band'
                                             'bpm'  '138.134'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Decca F 8261'
'TBPM' (BPM (beats per minute))                     '138.134'
'TCON' (Content type, a.k.a. Genre)                 'prerock-band'
'TDRC' (Recording time)                             '1943'
'TIT2' (Title/songname/content description)         "I've Got A Gal In Kalamazoo (vocal - Sid Colin)"
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Royal Air Force Dance Orchestra'
'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'                                   'jazz'
'TXXX:q-bass'                                       '1'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '+2.08 dB'
'TXXX:replaygain_track_peak'                        '0.463261'

========================== row from database ==========================
                                              'id'  1521782
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1943/Royal Air Force Dance Orchestra - I_ve Got A Gal In Kalamazoo (vocal - Sid Colin) 11-1-1943.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  202
                                           'genre'  prerock-band
                                        'filesize'  4042546
                                           'mtime'  1620561073
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1943 I_ve 11 1943 prerock band
                                      'tag_artist'  Royal Air Force Dance Orchestra
                                     'tag_release'  Decca F 8261
                                       'tag_title'  I've Got A Gal In Kalamazoo (vocal - Sid Colin)
                                             'bpm'  138.134
                                    'search_title'  'a':5 'colin':12,13 'gal':6 'got':4 'i':1 'in':7 'ive':3 'kalamazoo':8 'sid':11 've':2 'vocal':9,10
                                   'search_artist'  'air':2 'dance':4 'force':3 'orchestra':5 'royal':1
                                  'search_release'  '8261':3 'decca':1 'f':2
                                     'search_rest'  '00oldiepop':5 '1943':6 'band':10 'country':4 'exotica':2 'i':7 'jazz':1 'oldies':3 'prerock':9 've':8
                                    'search_combo'  '00oldiepop':26 '1943':27 '8261':21C 'a':5A 'air':15B 'band':31 'colin':12A,13A 'country':25 'dance':17B 'decca':19C 'exotica':23 'f':20C 'force':16B 'gal':6A 'got':4A 'i':1A,28 'in':7A 'ive':3A 'jazz':22 'kalamazoo':8A 'oldies':24 'orchestra':18B 'prerock':30 'royal':14B 'sid':11A 've':2A,29 'vocal':9A,10A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           '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-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['jazz']
                                        'tag_date'  1943
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620561072.8521698  (2021-05-09 13:51:12)
                             'size'  4042546