======================== unified (from filesystem) ========================
                                         'bitrate'  '251.933'
                                        'duration'  '57'
                                          'artist'  'Dieterich Buxtehude; Ton Koopman'
                                     'text_people'  'Buxtehude'
                                         'release'  'Opera Omnia I - Harpsichord Works, Vol. 1'
                                           'title'  ("La Capricciosa, partite diverse sopra una aria d'Inventione, BuxWV 250: "
 'Partita 13')
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  '57'
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'prerock-classical or classical instruments'
                                             'bpm'  '142.809'
                                             'key'  '2B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Opera Omnia I - Harpsichord Works, Vol. 1'
'TBPM' (BPM (beats per minute))                     '142.809'
'TCOM' (Composer)                                   'Buxtehude'
'TCON' (Content type, a.k.a. Genre)                 'prerock-classical or classical instruments'
'TDOR' (Original release time)                      '2006'
'TDRC' (Recording time)                             '2006-10-10'
'TIT2' (Title/songname/content description)         ("La Capricciosa, partite diverse sopra una aria d'Inventione, BuxWV 250: "
 'Partita 13')
'TKEY' (Initial key)                                '2B'
'TPE1' (Lead performer(s)/Soloist(s))               'Dieterich Buxtehude'
'TPE2' (Band/orchestra/accompaniment)               'Dieterich Buxtehude; Ton Koopman'
'TPOS' (Part of a set)                              '1/2'
'TPUB' (Publisher)                                  'Challenge Classics'
'TRCK' (Track number/Position in set)               '13/57'
'TSO2'                                              'Buxtehude, Dieterich; Koopman, Ton'
'TSOP' (Performer sort order)                       'Buxtehude, Dieterich'
'TXXX:ASIN'                                         'B000G1QZQQ'
'TXXX:Artists'                                      'Dieterich Buxtehude'
'TXXX:MusicBrainz Album Artist Id'                  'f106fb52-0b54-4135-bdfd-9ccfd7e320cb/448da1b1-43a3-4239-b2c1-f7e46463439e'
'TXXX:MusicBrainz Album Id'                         '8b966f9e-afab-42ae-997a-bd543e88057f'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'f106fb52-0b54-4135-bdfd-9ccfd7e320cb'
'TXXX:MusicBrainz Release Group Id'                 '5342a9e2-3b50-44b8-8e44-de3f93a70047'
'TXXX:MusicBrainz Release Track Id'                 '0eb5b66a-9f11-4321-b970-872459332e7d'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:originalyear'                                 '2006'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.39 dB'
'TXXX:replaygain_track_peak'                        '0.652863'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'3a309f73-701c-41ee-8827-706ee2258946')

========================== row from database ==========================
                                              'id'  1407940
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/Ton Koopman/Opera Omnia I - Buxtehude_ Harpsichord works I/13 Part 13.mp3
                                         'working'  None
                                         'bitrate'  252
                                    'duration_sec'  57
                                           'genre'  prerock-classical or classical instruments
                                        'filesize'  1884390
                                           'mtime'  1620561949
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat Buxtehude_ works prerock classical classical instruments
                                      'tag_artist'  Dieterich Buxtehude; Ton Koopman
                                     'tag_release'  Opera Omnia I - Harpsichord Works, Vol. 1
                                       'tag_title'  La Capricciosa, partite diverse sopra una aria d'Inventione, BuxWV 250: Partita 13
                                             'bpm'  142.809
                                    'search_title'  '250':13,14 'aria':8 'bux':16 'buxwv':12 'capricciosa':2,3 'd':9 'dinventione':11 'diverse':5 'inventione':10 'la':1 'partita':15 'partite':4 'sopra':6 'una':7 'wv':17
                                   'search_artist'  'buxtehude':2,3 'dieterich':1 'koopman':5 'ton':4
                                  'search_release'  '1':9 'harpsichord':4 'i':3 'omnia':2 'opera':1 'vol':7,8 'works':5,6
                                     'search_rest'  '00poprockelectronic':1 'buxtehude':5 'classical':8 'dance':3 'generic':2 'instruments':9 'prerock':7 'trapbeat':4 'works':6
                                    'search_combo'  '00poprockelectronic':32 '1':31C '250':13A,14A 'aria':8A 'bux':16A 'buxtehude':19B,20B,36 'buxwv':12A 'capricciosa':2A,3A 'classical':39 'd':9A 'dance':34 'dieterich':18B 'dinventione':11A 'diverse':5A 'generic':33 'harpsichord':26C 'i':25C 'instruments':40 'inventione':10A 'koopman':22B 'la':1A 'omnia':24C 'opera':23C 'partita':15A 'partite':4A 'prerock':38 'sopra':6A 'ton':21B 'trapbeat':35 'una':7A 'vol':29C,30C 'works':27C,28C,37 'wv':17A
                                    'tag_tracknum'  13
                                      'num_images'  1
                                             'key'  2B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  2006
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620561948.6266081  (2021-05-09 14:05:48)
                             'size'  1884390