======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '231'
                                          'artist'  'Mambo Kurt'
                                     'text_people'  ''
                                         'release'  'The Return of Alleinunterhalter'
                                           'title'  'Insomnia'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-OLDST-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['german', 'heimorgel', 'electronic', 'covers', 'deutsch']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  '15'
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'set-th-novelty-styledcovers;set-cover or covered'
                                             'bpm'  '102.0'
                                             'key'  '10A'
                                        'acoustid'  'f34d97c5-51be-44ab-bc26-8c583787ad22'
rest: ''

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

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'COMM:iTunNORM:eng'                                 (' 000008F0 0000081B 00007548 000068A6 0001F9EB 0001F9EB 00008F95 00008C0A '
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'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000738 00000000009BD8B8 00000000 00000000 00000000 '
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'COMM:iTunes_CDDB_IDs:eng'                          '15+061313CA4F65D5AA85AFDFAD4187ECD5+244343'
'TALB' (Album/Movie/Show title)                     'The Return of Alleinunterhalter'
'TBPM' (BPM (beats per minute))                     '102.0'
'TCON' (Content type, a.k.a. Genre)                 ['set-th-novelty-styledcovers', 'set-cover or covered']
'TDOR' (Original release time)                      '1998'
'TDRC' (Recording time)                             '1999'
'TENC' (Encoded by)                                 'iTunes v6.0.4'
'TIT2' (Title/songname/content description)         'Insomnia'
'TKEY' (Initial key)                                '10A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Mambo Kurt'
'TPE2' (Band/orchestra/accompaniment)               'Mambo Kurt'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '11/15'
'TSO2'                                              'Mambo Kurt'
'TSOP' (Performer sort order)                       'Mambo Kurt'
'TXXX:ASIN'                                         'B000028CUK'
'TXXX:Acoustid Id'                                  'f34d97c5-51be-44ab-bc26-8c583787ad22'
'TXXX:MusicBrainz Album Artist Id'                  'ed91f11b-4341-46a0-84f6-8fb3c7f3adfe'
'TXXX:MusicBrainz Album Id'                         '0deea734-5931-4232-a3e0-9831a3877a0e'
'TXXX:MusicBrainz Album Release Country'            'DE'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'ed91f11b-4341-46a0-84f6-8fb3c7f3adfe'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['german', 'heimorgel', 'electronic', 'covers', 'deutsch']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-4.90 dB'
'TXXX:replaygain_track_peak'                        '0.705051'
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========================== row from database ==========================
                                              'id'  640143
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Mambo Kurt - The Return Of Alleinunterhalter (1998)/11 - Insomnia (Faithless).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  231
                                           'genre'  set-th-novelty-styledcovers;set-cover or covered
                                        'filesize'  5587388
                                           'mtime'  1636757473
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Of (1998) 11 (Faithless) set th novelty styledcovers;set cover or covered
                                      'tag_artist'  Mambo Kurt
                                     'tag_release'  The Return of Alleinunterhalter
                                       'tag_title'  Insomnia
                                             'bpm'  102.0
                                    'search_title'  'insomnia':1
                                   'search_artist'  'kurt':2 'mambo':1
                                  'search_release'  'alleinunterhalter':4 'of':3 'return':2 'the':1
                                     'search_rest'  '1998':2,3 'cover':13 'covered':15 'faithless':4,5 'novelty':8 'of':1 'or':14 'set':6,10,12 'styledcovers':9,11 'th':7
                                    'search_combo'  '1998':9,10 'alleinunterhalter':7C 'cover':20 'covered':22 'faithless':11,12 'insomnia':1A 'kurt':3B 'mambo':2B 'novelty':15 'of':6C,8 'or':21 'return':5C 'set':13,17,19 'styledcovers':16,18 'th':14 'the':4C
                                    'tag_tracknum'  11
                                      'num_images'  1
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['german', 'heimorgel', 'electronic', 'covers', 'deutsch']
                                        'tag_date'  1999
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636757472.9017696  (2021-11-12 23:51:12)
                             'size'  5587388