======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '142'
                                          'artist'  'The Caravans'
                                     'text_people'  ''
                                         'release'  'sweets'
                                           'title'  'Three Musketeers 2'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['neo rockabilly', 'gospel', 'psychobilly', 'british', 'rockabilly']"
                                     'discogstags'  "['rockabilly', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  '16'
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'set-th-candy'
                                             'bpm'  '90.371'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         ['0',
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 '00000000 00000000 00000000 00000000 00000000']
'COMM:ID3v1 Comment:XXX'                            '0'
'COMM:iTunes_CDDB_1:eng'                            'CD099C10+184677+16+150+8833+19522+30774+43919+52087+65682+74539+82751+96011+107859+118270+136130+147586+159762+173443'
'COMM:iTunes_CDDB_TrackNumber:eng'                  '2'
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'PRIV:PeakValue:¡w\x00\x00'                         PRIV(owner='PeakValue', data=b'\xa1w\x00\x00')
'TALB' (Album/Movie/Show title)                     'sweets'
'TBPM' (BPM (beats per minute))                     '90.371'
'TCON' (Content type, a.k.a. Genre)                 'set-th-candy'
'TENC' (Encoded by)                                 'iTunes 8.0.2'
'TIT2' (Title/songname/content description)         'Three Musketeers 2'
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Caravans'
'TRCK' (Track number/Position in set)               '2/16'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rockabilly', 'rock']
'TXXX:lastfmtags'                                   ['neo rockabilly', 'gospel', 'psychobilly', 'british', 'rockabilly']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.37 dB'
'TXXX:replaygain_track_peak'                        '0.787467'

========================== row from database ==========================
                                              'id'  735787
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/sweets/The Caravans - Three Musketeers 2.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  142
                                           'genre'  set-th-candy
                                        'filesize'  3423960
                                           'mtime'  1678463535
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country set th candy
                                      'tag_artist'  The Caravans
                                     'tag_release'  sweets
                                       'tag_title'  Three Musketeers 2
                                             'bpm'  90.371
                                    'search_title'  '2':3 'musketeers':2 'three':1
                                   'search_artist'  'caravans':2 'the':1
                                  'search_release'  'sweets':1
                                     'search_rest'  'candy':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'set':5 'th':6
                                    'search_combo'  '2':3A 'candy':13 'caravans':5B 'country':10 'exotica':8 'jazz':7 'musketeers':2A 'oldies':9 'set':11 'sweets':6C 'th':12 'the':4B 'three':1A
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  11A
                                           'quals'  ['Q-HAP-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-1']
                                      'lastfmtags'  ['neo rockabilly', 'gospel', 'psychobilly', 'british', 'rockabilly']
                                        'tag_date'  
                                     'discogstags'  ['rockabilly', 'rock']

============================== file details ==============================
                                           'mtime'  1678463535.0158858  (2023-03-10 16:52:15)
                             'size'  3423960