======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '252'
                                          'artist'  'The Prodigy'
                                     'text_people'  ''
                                         'release'  'Experience Expanded (cd1)'
                                           'title'  'Music Reach (1234)'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['industrial', 'dance', 'techno', 'electronic', 'electronica']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '02'
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-bigbeat;set-pl-sced'
                                             'bpm'  '144.1'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:iTunNORM:eng'                                 (' 00000867 00000B2F 0000306B 00003D52 0002712E 0001FC15 00006987 0000633E '
 '0002712E 0002712E')
'TALB' (Album/Movie/Show title)                     'Experience Expanded (cd1)'
'TBPM' (BPM (beats per minute))                     '144.1'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-generic or radio-bigbeat', 'set-pl-sced']
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         'Music Reach (1234)'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Prodigy'
'TPE2' (Band/orchestra/accompaniment)               'The Prodigy'
'TPOS' (Part of a set)                              '1/2'
'TRCK' (Track number/Position in set)               '02'
'TSSE' (Software/Hardware and settings used for encoding)  'Audiograbber 1.80, External encoder lame.exe (%s %d -b 192) '
'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'                                   ['industrial', 'dance', 'techno', 'electronic', 'electronica']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+1.16 dB'
'TXXX:replaygain_track_peak'                        '0.491512'

========================== row from database ==========================
                                              'id'  1321792
                                            'path'  /data/Music/Bulk/00poprockelectronic/The Prodigy/[2001] Experience Expanded (cd1)/1-02 Music Reach (1234).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  252
                                           'genre'  electronic-generic or radio-bigbeat;set-pl-sced
                                        'filesize'  6083431
                                           'mtime'  1621696639
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic [2001] 02 electronic generic or radio bigbeat;set pl sced
                                      'tag_artist'  The Prodigy
                                     'tag_release'  Experience Expanded (cd1)
                                       'tag_title'  Music Reach (1234)
                                             'bpm'  144.1
                                    'search_title'  '1234':3,4 'music':1 'reach':2
                                   'search_artist'  'prodigy':2 'the':1
                                  'search_release'  'cd1':3,4 'expanded':2 'experience':1
                                     'search_rest'  '00poprockelectronic':1 '2001':2,3 'bigbeat':8,10 'electronic':4 'generic':5 'or':6 'pl':12 'radio':7 'sced':13 'set':9,11
                                    'search_combo'  '00poprockelectronic':11 '1234':3A,4A '2001':12,13 'bigbeat':18,20 'cd1':9C,10C 'electronic':14 'expanded':8C 'experience':7C 'generic':15 'music':1A 'or':16 'pl':22 'prodigy':6B 'radio':17 'reach':2A 'sced':23 'set':19,21 'the':5B
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-4', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['industrial', 'dance', 'techno', 'electronic', 'electronica']
                                        'tag_date'  2001
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621696639.1220527  (2021-05-22 17:17:19)
                             'size'  6083431