======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '472'
                                          'artist'  'Bob Dylan'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Ballad in plain D'
                                           'quals'  ("['Q-HAP-2', 'Q-GRIT-2', 'Q-PLAY-3', 'q-bass-1', 'q-drums-1', 'q-other-3', "
 "'q-piano-1', 'q-vocals-4', 'Q-SYN-1', 'Q-UNU-2', 'Q-BUSY-3', 'Q-CHART-4', "
 "'Q-JZFKS-2', 'Q-OLDST-2', 'Q-HHRNBTT-1', 'Q-MIXBEAT-1', 'Q-LOCALNESS-2']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-rock'
                                             'bpm'  '141.2'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'COMM:iTunes_CDDB_1:eng'                            '31122B13+349021+19+150+17549+31409+41742+72286+92632+109063+128635+147383+166120+201545+216778+230120+261702+275869+289629+304218+320417+335243'
'COMM:iTunes_CDDB_TrackNumber:eng'                  '10'
'TBPM' (BPM (beats per minute))                     '141.2'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-rock'
'TIT2' (Title/songname/content description)         'Ballad in plain D'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Bob Dylan'
'TRCK' (Track number/Position in set)               '10'
'TXXX:MusicMagic Data'                              'AgEBXRuxjp6fcc4fgvpku0GfgAGBnpaVAEWhLSbsgDbYv6STw68PzKyagAHac4kKqHGkk8JC0I/Qy4ABgAHXBgAhC8q8GKoMgAKAAZ2soV6qj4JZ72E6jYOag96VZQSaoDcs94E381yaIZklDdWubYrouv6i/YPDktDp1bFMA3idMYI7tG4Dx/ayujjCo4w9gzA='
'TXXX:MusicMagic Fingerprint'                       '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'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '4'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-MIXBEAT'                                    '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:http://www.foosic.org/'                       '000087b8000074079b1223771fff33df4fffffff9e0f9fae97fc3ff3bf3bdbfcfbd13fffffa835b3257c3afb81bcbbdb205c37ef0acc3fffff103ffffe0cbf2cbff3fffbfdcd1dfe7fc02f578580fff61dc72fd700dc9fff3527bcfcfeccffffcf44fbf3febc43d1ffcc2effffbc3fff6e30dcc3cbbfef8c013b0cf00d597ad30374faf3305051e711b8d4fa0ccdfd0fc7f76f3dfe313e60ff0dccff890cbe5d53efffff3b3e77f3411f033bbffc3cffdfc07ffbfd1cfffff0c2ccf90bf13fed03063f07f4d85f7a0dccb70368712decb2fc31ff0cc23dfa3e19ffef0f607ffbdff337d3800c1ff3bf4e0effff9d338ffcfcfff3f4cc0ffb8fef0cd41ce167ef04ac9fff147c7ce78ce06a7f233d42bf028c1e33017e7bffe0decf7f2ffed033bffceedf3e883ff30becfbe1e3ffff3f3033f7efb9f32bf3153c7af30ffc7bdfffdf3ffffe713f3fc3317efcf8cff4e174f90ddeff6c3f4b3eccfbf4befca879eef8df3fdd4c86103b961fafbf5875f39df503dd7ef78be1ffae35840d6e8b8d7697af40fbef3ceb9d7073dff5e3acbcf3affdd40bea862870f7dde5878bb287cf25877ab0a78e00'
'TXXX:q-bass'                                       '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.33 dB'
'TXXX:replaygain_track_peak'                        '0.845449'

========================== row from database ==========================
                                              'id'  1495637
                                            'path'  /data/Music/Other/Pa/All/Bob Dylan/Ballad in plain D.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  472
                                           'genre'  ifs-songwriter-rock
                                        'filesize'  9456702
                                           'mtime'  1636135092
                                   'redo_metaread'  0
                                        'rest_str'   Pa All ifs songwriter rock
                                      'tag_artist'  Bob Dylan
                                     'tag_release'  None
                                       'tag_title'  Ballad in plain D
                                             'bpm'  141.2
                                    'search_title'  'ballad':1 'd':4 'in':2 'plain':3
                                   'search_artist'  'bob':1 'dylan':2
                                  'search_release'  
                                     'search_rest'  'all':2 'ifs':3 'pa':1 'rock':5 'songwriter':4
                                    'search_combo'  'all':8 'ballad':1A 'bob':5B 'd':4A 'dylan':6B 'ifs':9 'in':2A 'pa':7 'plain':3A 'rock':11 'songwriter':10
                                    'tag_tracknum'  10
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'Q-MIXBEAT-1', 'Q-OLDST-2', 'Q-GRIT-2', 'Q-UNU-2', 'Q-JZFKS-2', 'Q-CHART-4', 'q-drums-1', 'Q-SYN-1', 'q-other-3', 'Q-BUSY-3', 'Q-HAP-2', 'Q-PLAY-3', 'q-bass-1']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636135091.8406506  (2021-11-05 18:58:11)
                             'size'  9456702