======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '200'
                                          'artist'  "Rudy Wiedoeft's Saxophone Sextette"
                                     'text_people'  ''
                                         'release'  'Puritan    933'
                                           'title'  'Bow Wow Blues (vocal - Bee Kerwin)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1922'
                                        'comments'  ''
                                           'genre'  'prerock-ragtime'
                                             'bpm'  '101.462'
                                             'key'  '2A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Puritan    933'
'TBPM' (BPM (beats per minute))                     '101.462'
'TCON' (Content type, a.k.a. Genre)                 'prerock-ragtime'
'TDRC' (Recording time)                             '1922'
'TIT2' (Title/songname/content description)         'Bow Wow Blues (vocal - Bee Kerwin)'
'TKEY' (Initial key)                                '2A'
'TPE1' (Lead performer(s)/Soloist(s))               "Rudy Wiedoeft's Saxophone Sextette"
'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:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.45 dB'
'TXXX:replaygain_track_peak'                        '0.472848'

========================== row from database ==========================
                                              'id'  1499689
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1922/Rudy Wiedoeft_s Sax Sextette - Bow Wow Blues (vocal - Bee Kerwin) 1922 Puritan.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  200
                                           'genre'  prerock-ragtime
                                        'filesize'  4015922
                                           'mtime'  1620527181
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1922 Wiedoeft_s 1922 prerock ragtime
                                      'tag_artist'  Rudy Wiedoeft's Saxophone Sextette
                                     'tag_release'  Puritan    933
                                       'tag_title'  Bow Wow Blues (vocal - Bee Kerwin)
                                             'bpm'  101.462
                                    'search_title'  'bee':6 'blues':3 'bow':1 'kerwin':7,8 'vocal':4,5 'wow':2
                                   'search_artist'  'rudy':1 's':3 'saxophone':5 'sextette':6 'wiedoeft':2 'wiedoefts':4
                                  'search_release'  '933':2 'puritan':1
                                     'search_rest'  '00oldiepop':5 '1922':6 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':9 'ragtime':10 's':8 'wiedoeft':7
                                    'search_combo'  '00oldiepop':21 '1922':22 '933':16C 'bee':6A 'blues':3A 'bow':1A 'country':20 'exotica':18 'jazz':17 'kerwin':7A,8A 'oldies':19 'prerock':25 'puritan':15C 'ragtime':26 'rudy':9B 's':11B,24 'saxophone':13B 'sextette':14B 'vocal':4A,5A 'wiedoeft':10B,23 'wiedoefts':12B 'wow':2A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  2A
                                           '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-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1922
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620527181.2656968  (2021-05-09 04:26:21)
                             'size'  4015922