======================== unified (from filesystem) ========================
                                         'bitrate'  '268.297'
                                        'duration'  '290'
                                          'artist'  'FM'
                                     'text_people'  ''
                                         'release'  '50 jaar nederpop: Rare & Obscure'
                                           'title'  'In the Valley Back Home'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
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 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
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                                      'lastfmtags'  "['80s', 'hard rock', 'progressive rock', 'aor', 'rock']"
                                     'discogstags'  "['electronic', 'techno', 'acid']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  '20'
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'loc-eur-netherlands'
                                             'bpm'  '103.5'
                                             'key'  '12A'
                                        'acoustid'  '1af6d6c8-8519-4b5f-b630-41393244c1d1'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM::\x00\x00\x00'                                'High Quality, EAC secure, Lossless flac '
'TALB' (Album/Movie/Show title)                     '50 jaar nederpop: Rare & Obscure'
'TBPM' (BPM (beats per minute))                     '103.5'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'loc-eur-netherlands'
'TDOR' (Original release time)                      '2008'
'TDRC' (Recording time)                             '2008'
'TIT2' (Title/songname/content description)         'In the Valley Back Home'
'TKEY' (Initial key)                                '12A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'FM'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '3/4'
'TPUB' (Publisher)                                  'Universal Music'
'TRCK' (Track number/Position in set)               '10/20'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'FM'
'TXXX:ASIN'                                         'B001ERJS06'
'TXXX:Acoustid Id'                                  '1af6d6c8-8519-4b5f-b630-41393244c1d1'
'TXXX:Artists'                                      'FM'
'TXXX:BARCODE'                                      '0602517851573'
'TXXX:CATALOGNUMBER'                                '178 515-7/178 515-8/178 515-9/178 516-0/178 516-1'
'TXXX:MusicBrainz Album Artist Id'                  '89ad4ac3-39f7-470e-963a-56509c546377'
'TXXX:MusicBrainz Album Id'                         'b600b3aa-2811-4995-ada8-84616dc2501b'
'TXXX:MusicBrainz Album Release Country'            'NL'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album/compilation'
'TXXX:MusicBrainz Artist Id'                        '27b686a6-fd9a-4331-9e8b-f778452a91e1'
'TXXX:MusicBrainz Release Group Id'                 '5b1ea5c1-2a34-3c23-a9cf-fb778fc22c67'
'TXXX:MusicBrainz Release Track Id'                 'e0591632-6593-3e40-ac06-ad53ecb5e451'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['electronic', 'techno', 'acid']
'TXXX:lastfmtags'                                   ['80s', 'hard rock', 'progressive rock', 'aor', 'rock']
'TXXX:originalyear'                                 '2008'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.23 dB'
'TXXX:replaygain_track_peak'                        '0.519203'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'573a30a0-6a99-424c-bb78-6df91400b978')

========================== row from database ==========================
                                              'id'  1393298
                                            'path'  /data/Music/Bulk/00localcharacter/00mid-north-europe/The Ricochets feat. Ritchie Clark - Various - 50 Jaar Nederpop- Rare & Obscure/Various - 50 Jaar Nederpop  Rare & Obscure CD3/10 - In The Valley Back Home.mp3
                                         'working'  None
                                         'bitrate'  268
                                    'duration_sec'  290
                                           'genre'  loc-eur-netherlands
                                        'filesize'  9801545
                                           'mtime'  1621629556
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00mid north europe The Ricochets feat. Ritchie Clark Various Jaar Nederpop Various Jaar Nederpop CD3 10 The loc eur netherlands
                                      'tag_artist'  FM
                                     'tag_release'  50 jaar nederpop: Rare & Obscure
                                       'tag_title'  In the Valley Back Home
                                             'bpm'  103.5
                                    'search_title'  'back':4 'home':5 'in':1 'the':2 'valley':3
                                   'search_artist'  'fm':1
                                  'search_release'  '50':1 'jaar':2 'nederpop':3,4 'obscure':6 'rare':5
                                     'search_rest'  '00mid':1 'cd3':13 'clark':9 'eur':15 'europe':3 'feat':6,7 'jaar':11 'loc':14 'nederpop':12 'netherlands':16 'north':2 'ricochets':5 'ritchie':8 'the':4 'various':10
                                    'search_combo'  '00mid':13 '50':7C 'back':4A 'cd3':25 'clark':21 'eur':27 'europe':15 'feat':18,19 'fm':6B 'home':5A 'in':1A 'jaar':8C,23 'loc':26 'nederpop':9C,10C,24 'netherlands':28 'north':14 'obscure':12C 'rare':11C 'ricochets':17 'ritchie':20 'the':2A,16 'valley':3A 'various':22
                                    'tag_tracknum'  10
                                      'num_images'  1
                                             'key'  12A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'hard rock', 'progressive rock', 'aor', 'rock']
                                        'tag_date'  2008
                                     'discogstags'  ['electronic', 'techno', 'acid']

============================== file details ==============================
                                           'mtime'  1621629556.0170727  (2021-05-21 22:39:16)
                             'size'  9801545