======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '213'
                                          'artist'  'O.T. Quartet'
                                     'text_people'  ''
                                         'release'  '538 Dance Smash Hits - Spring 2001'
                                           'title'  'Hold That Sucker'
                                           'quals'  ("['Q-HAP-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-OLDST-3', "
 "'Q-UNU-1', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['dance', 'techno', 'progressive trance', 'house', 'trance']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-dance'
                                             'bpm'  '137.852'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     '538 Dance Smash Hits - Spring 2001'
'TBPM' (BPM (beats per minute))                     '137.852'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-dance'
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         'Hold That Sucker'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'O.T. Quartet'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '10'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['dance', 'techno', 'progressive trance', 'house', 'trance']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.03 dB'
'TXXX:replaygain_track_peak'                        '0.407835'

========================== row from database ==========================
                                              'id'  1406430
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/538 Dance Smash Hits/538 Dance Smash Hits - Spring 2001/O.T. Quartet - Hold That Sucker - 10.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  213
                                           'genre'  electronic-generic or radio-dance
                                        'filesize'  5127220
                                           'mtime'  1621695830
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat 10 electronic generic or radio dance
                                      'tag_artist'  O.T. Quartet
                                     'tag_release'  538 Dance Smash Hits - Spring 2001
                                       'tag_title'  Hold That Sucker
                                             'bpm'  137.852
                                    'search_title'  'hold':1 'sucker':3 'that':2
                                   'search_artist'  'o':1 'ot':3 'quartet':4 't':2
                                  'search_release'  '2001':6 '538':1 'dance':2 'hits':4 'smash':3 'spring':5
                                     'search_rest'  '00poprockelectronic':1 'dance':3 'electronic':5 'generic':2 'or':6 'radio':7 'trapbeat':4
                                    'search_combo'  '00poprockelectronic':14 '2001':13C '538':8C 'dance':9C,16 'electronic':18 'generic':15 'hits':11C 'hold':1A 'o':4B 'or':19 'ot':6B 'quartet':7B 'radio':20 'smash':10C 'spring':12C 'sucker':3A 't':5B 'that':2A 'trapbeat':17
                                    'tag_tracknum'  10
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['dance', 'techno', 'progressive trance', 'house', 'trance']
                                        'tag_date'  2001
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621695830.466652  (2021-05-22 17:03:50)
                             'size'  5127220