======================== unified (from filesystem) ========================
                                         'bitrate'  '186.897'
                                        'duration'  '217'
                                          'artist'  'Maxence Cyrin'
                                     'text_people'  ''
                                         'release'  'Novö Piano'
                                           'title'  'Only Shallow'
                                           'quals'  ("['Q-HAP-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'Q-PLAY-3', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', "
 "'Q-PIANO-4', 'q-chart-2', 'q-drums-1', 'q-other-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  ("['fip', 'neo classical', 'modern classical', 'instrumental', 'ambient', "
 "'piano']")
                                     'discogstags'  "['classical', 'neo-classical', 'modern']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '10'
                                            'date'  '2010'
                                        'comments'  ''
                                           'genre'  'set-th-novelty-styledcovers;set-cover or covered'
                                             'bpm'  '136.4'
                                             'key'  '6A'
                                        'acoustid'  '8fb49891-d173-4cb8-833a-ea8cd4afaa4b'
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Novö Piano'
'TBPM' (BPM (beats per minute))                     '136.4'
'TCON' (Content type, a.k.a. Genre)                 ['set-th-novelty-styledcovers', 'set-cover or covered']
'TDOR' (Original release time)                      '2009'
'TDRC' (Recording time)                             '2010-07-02'
'TENC' (Encoded by)                                 'Lame 3.97'
'TIT2' (Title/songname/content description)         'Only Shallow'
'TKEY' (Initial key)                                '6A'
'TLAN' (Language(s))                                'English'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Maxence Cyrin'
'TPE2' (Band/orchestra/accompaniment)               'Maxence Cyrin'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Kwaidan Records'
'TRCK' (Track number/Position in set)               '4/10'
'TSO2'                                              'Cyrin, Maxence'
'TSOP' (Performer sort order)                       'Cyrin, Maxence'
'TSRC' (ISRC (international standard recording code))  'FR13Z0900043'
'TXXX:ASIN'                                         'B0038ZGLSY'
'TXXX:Acoustid Id'                                  '8fb49891-d173-4cb8-833a-ea8cd4afaa4b'
'TXXX:BARCODE'                                      '3700426911818'
'TXXX:CATALOGNUMBER'                                'KW019'
'TXXX:MusicBrainz Album Artist Id'                  '7947dab4-4274-46f4-bc11-135561c110b7'
'TXXX:MusicBrainz Album Id'                         '551a555b-ccd5-4993-bd0f-3405fc0b1e83'
'TXXX:MusicBrainz Album Release Country'            'FR'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '7947dab4-4274-46f4-bc11-135561c110b7'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PIANO'                                      '4'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['classical', 'neo-classical', 'modern']
'TXXX:lastfmtags'                                   ['fip', 'neo classical', 'modern classical', 'instrumental', 'ambient', 'piano']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.12 dB'
'TXXX:replaygain_track_peak'                        '0.833206'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'886bda94-44c2-4a62-8bb6-b742e9cf35ff')

========================== row from database ==========================
                                              'id'  916387
                                            'path'  /data/Music/Bulk/00instruments-classical/Maxence_Cyrin-Novo_Piano-2010-SNOOK/04-maxence_cyrin-only_shallow-snook.mp3
                                         'working'  None
                                         'bitrate'  186
                                    'duration_sec'  217
                                           'genre'  set-th-novelty-styledcovers;set-cover or covered
                                        'filesize'  5097875
                                           'mtime'  1637933289
                                   'redo_metaread'  0
                                        'rest_str'   00instruments classical Maxence_Cyrin Novo_Piano 2010 SNOOK 04 maxence_cyrin only_shallow snook set th novelty styledcovers;set cover or covered
                                      'tag_artist'  Maxence Cyrin
                                     'tag_release'  Novö Piano
                                       'tag_title'  Only Shallow
                                             'bpm'  136.4
                                    'search_title'  'only':1 'shallow':2
                                   'search_artist'  'cyrin':2 'maxence':1
                                  'search_release'  'novo':1,2 'piano':3
                                     'search_rest'  '00instruments':1 '2010':7 'classical':2 'cover':18 'covered':20 'cyrin':4 'maxence':3 'novelty':13 'novo':5 'only':9 'or':19 'piano':6 'set':11,15,17 'shallow':10 'snook':8 'styledcovers':14,16 'th':12
                                    'search_combo'  '00instruments':8 '2010':14 'classical':9 'cover':25 'covered':27 'cyrin':4B,11 'maxence':3B,10 'novelty':20 'novo':5C,6C,12 'only':1A,16 'or':26 'piano':7C,13 'set':18,22,24 'shallow':2A,17 'snook':15 'styledcovers':21,23 'th':19
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-mixbeat-2', 'Q-PIANO-4', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'Q-PLAY-3', 'q-syn-1', 'q-chart-2', 'q-other-1', 'Q-HAP-2', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['fip', 'neo classical', 'modern classical', 'instrumental', 'ambient', 'piano']
                                        'tag_date'  2010
                                     'discogstags'  ['classical', 'neo-classical', 'modern']

============================== file details ==============================
                                           'mtime'  1637933289.0696628  (2021-11-26 14:28:09)
                             'size'  5097875