======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '167'
                                          'artist'  'Bix Beiderbecke'
                                     'text_people'  ''
                                         'release'  'Great Trumpets From Jazz to Swing'
                                           'title'  'Lonely Melody'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-3', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-1', 'q-play-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['dixieland jazz', '20s', 'jazz', 'dixieland', 'swing']"
                                     'discogstags'  "['jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  ''
                                            'date'  '1925'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-o-dixiestyle'
                                             'bpm'  '96.576'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'POPM:Windows Media Player 9 Series'                POPM(email='Windows Media Player 9 Series', rating=128, count=0)
'TALB' (Album/Movie/Show title)                     'Great Trumpets From Jazz to Swing'
'TBPM' (BPM (beats per minute))                     '96.576'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-o-dixiestyle'
'TDRC' (Recording time)                             '1925'
'TIT2' (Title/songname/content description)         'Lonely Melody'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Bix Beiderbecke'
'TRCK' (Track number/Position in set)               '9'
'TXXX:FMPS_Rating'                                  '0.6'
'TXXX:MusicMagic Data'                              'AQEAt6xngAGnBqifgy95ckv1gAGBNYHQH76raSxfgAHfHYABgvMm/r7dgTrj54vFhSaAAcyHKrjLMawegAGy9R0S2Z3AsKmBgAKAAQ=='
'TXXX:MusicMagic Fingerprint'                       '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'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'jazz'
'TXXX:lastfmtags'                                   ['dixieland jazz', '20s', 'jazz', 'dixieland', 'swing']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.58 dB'
'TXXX:replaygain_track_peak'                        '0.624379'

========================== row from database ==========================
                                              'id'  677328
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Unsorted/Lonely Melody__Great Trumpets From Jazz to Swing__09 - Bix Beiderbecke.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  167
                                           'genre'  prerock-jb-jazz-o-dixiestyle
                                        'filesize'  4031772
                                           'mtime'  1620536979
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Unsorted Melody__Great Swing__09 prerock jb jazz dixiestyle
                                      'tag_artist'  Bix Beiderbecke
                                     'tag_release'  Great Trumpets From Jazz to Swing
                                       'tag_title'  Lonely Melody
                                             'bpm'  96.576
                                    'search_title'  'lonely':1 'melody':2
                                   'search_artist'  'beiderbecke':2 'bix':1
                                  'search_release'  'from':3 'great':1 'jazz':4 'swing':6 'to':5 'trumpets':2
                                     'search_rest'  '09':9 'country':4 'dixiestyle':12 'exotica':2 'great':7 'jazz':1 'jb':11 'melody':6 'oldies':3 'prerock':10 'swing':8 'unsorted':5
                                    'search_combo'  '09':19 'beiderbecke':4B 'bix':3B 'country':14 'dixiestyle':22 'exotica':12 'from':7C 'great':5C,17 'jazz':8C,11 'jb':21 'lonely':1A 'melody':2A,16 'oldies':13 'prerock':20 'swing':10C,18 'to':9C 'trumpets':6C 'unsorted':15
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['dixieland jazz', '20s', 'jazz', 'dixieland', 'swing']
                                        'tag_date'  1925
                                     'discogstags'  ['jazz']

============================== file details ==============================
                                           'mtime'  1620536978.923794  (2021-05-09 07:09:38)
                             'size'  4031772