======================== unified (from filesystem) ========================
                                         'bitrate'  '194.484'
                                        'duration'  '115'
                                          'artist'  'Jethro Tull'
                                     'text_people'  'Ian Anderson'
                                         'release'  'Aqualung'
                                           'title'  "Wond'ring Aloud"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'Q-PLAY-3', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', "
 "'Q-PIANO-2', 'q-chart-4', 'q-drums-1', 'q-other-3', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['folk rock', 'rock', 'progressive rock', 'progressive', 'classic rock']"
                                     'discogstags'  "['rock', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  ''
                                            'date'  '1971'
                                        'comments'  ''
                                           'genre'  'rock-cppex-classic;rock-cppex-progressive'
                                             'bpm'  '144.438'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

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'COMM:iTunNORM:eng'                                 (' 0000003E 0000003C 0000047C 0000042A 0000EF2F 0000EF2F 0000285F 0000296F '
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'TALB' (Album/Movie/Show title)                     'Aqualung'
'TBPM' (BPM (beats per minute))                     '144.438'
'TCOM' (Composer)                                   'Ian Anderson'
'TCON' (Content type, a.k.a. Genre)                 ['rock-cppex-classic', 'rock-cppex-progressive']
'TDRC' (Recording time)                             '1971'
'TIT2' (Title/songname/content description)         "Wond'ring Aloud"
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'Jethro Tull'
'TPE2' (Band/orchestra/accompaniment)               'Jethro Tull'
'TPUB' (Publisher)                                  'Capitol'
'TRCK' (Track number/Position in set)               '5'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'classic rock']
'TXXX:lastfmtags'                                   ['folk rock', 'rock', 'progressive rock', 'progressive', 'classic rock']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.05 dB'
'TXXX:replaygain_track_peak'                        '0.915610'

========================== row from database ==========================
                                              'id'  1497501
                                            'path'  /data/Music/Bulk/00localcharacter/00mid-north-europe/00dutch/jethro tull - aqualung - 05 - wond_ring aloud.mp3
                                         'working'  None
                                         'bitrate'  194
                                    'duration_sec'  115
                                           'genre'  rock-cppex-classic;rock-cppex-progressive
                                        'filesize'  2817662
                                           'mtime'  1635956541
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00mid north europe 00dutch jethro tull aqualung 05 wond_ring aloud rock cppex classic;rock cppex progressive
                                      'tag_artist'  Jethro Tull
                                     'tag_release'  Aqualung
                                       'tag_title'  Wond'ring Aloud
                                             'bpm'  144.438
                                    'search_title'  'aloud':4 'ring':2 'wond':1 'wondring':3
                                   'search_artist'  'jethro':1 'tull':2
                                  'search_release'  'aqualung':1
                                     'search_rest'  '00dutch':4 '00mid':1 'aloud':10 'aqualung':7 'classic':13,15 'cppex':12 'europe':3 'jethro':5 'north':2 'progressive':17 'ring':9 'rock':11,14,16 'tull':6 'wond':8
                                    'search_combo'  '00dutch':11 '00mid':8 'aloud':4A,17 'aqualung':7C,14 'classic':20,22 'cppex':19 'europe':10 'jethro':5B,12 'north':9 'progressive':24 'ring':2A,16 'rock':18,21,23 'tull':6B,13 'wond':1A,15 'wondring':3A
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'Q-PLAY-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['folk rock', 'rock', 'progressive rock', 'progressive', 'classic rock']
                                        'tag_date'  1971
                                     'discogstags'  ['rock', 'classic rock']

============================== file details ==============================
                                           'mtime'  1635956541.4692533  (2021-11-03 17:22:21)
                             'size'  2817662