======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '58'
                                          'artist'  'Vladimir Ussachevsky'
                                     'text_people'  ''
                                         'release'  'Electronic And Acoustic Works 1957-1972'
                                           'title'  'Sketch 1'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-2', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['contemporary classical', 'electronic', 'earwaves', 'avant garde', "
 "'experimental']")
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '06'
                                      'tracktotal'  ''
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'soundtrack-video'
                                             'bpm'  '137.292'
                                             'key'  '2A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Electronic And Acoustic Works 1957-1972'
'TBPM' (BPM (beats per minute))                     '137.292'
'TCON' (Content type, a.k.a. Genre)                 'soundtrack-video'
'TDRC' (Recording time)                             '1999'
'TIT2' (Title/songname/content description)         'Sketch 1'
'TKEY' (Initial key)                                '2A'
'TPE1' (Lead performer(s)/Soloist(s))               'Vladimir Ussachevsky'
'TPUB' (Publisher)                                  'New World Records 80654-2 (Reissue 2007)'
'TRCK' (Track number/Position in set)               '06'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['contemporary classical',
 'electronic',
 'earwaves',
 'avant garde',
 'experimental']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.62 dB'
'TXXX:replaygain_track_peak'                        '0.497379'

========================== row from database ==========================
                                              'id'  470189
                                            'path'  /data/Music/Bulk/0soundtrack/Vladimir Ussachevsky - Electronic And Acoustic Works 1957-1972 1999/06 - Sketch 1.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  58
                                           'genre'  soundtrack-video
                                        'filesize'  2348028
                                           'mtime'  1642096547
                                   'redo_metaread'  0
                                        'rest_str'   0soundtrack 1999 06 soundtrack video
                                      'tag_artist'  Vladimir Ussachevsky
                                     'tag_release'  Electronic And Acoustic Works 1957-1972
                                       'tag_title'  Sketch 1
                                             'bpm'  137.292
                                    'search_title'  '1':2 'sketch':1
                                   'search_artist'  'ussachevsky':2 'vladimir':1
                                  'search_release'  '1957':5 '19571972':7 '1972':6 'acoustic':3 'and':2 'electronic':1 'works':4
                                     'search_rest'  '0soundtrack':1 '1999':2 'soundtrack':3 'video':4
                                    'search_combo'  '0soundtrack':12 '1':2A '1957':9C '19571972':11C '1972':10C '1999':13 'acoustic':7C 'and':6C 'electronic':5C 'sketch':1A 'soundtrack':14 'ussachevsky':4B 'video':15 'vladimir':3B 'works':8C
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  2A
                                           'quals'  ['Q-HAP-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-OLDST-2', 'q-syn-2', 'q-bass-2', 'q-busy-2', 'q-grit-2', 'q-play-2', 'q-chart-1', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-1', 'q-mixbeat-1']
                                      'lastfmtags'  ['contemporary classical', 'electronic', 'earwaves', 'avant garde', 'experimental']
                                        'tag_date'  1999
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1642096547.329748  (2022-01-13 18:55:47)
                             'size'  2348028