======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '197'
                                          'artist'  'Ozric Tentacles'
                                     'text_people'  ''
                                         'release'  'Erpland'
                                           'title'  'Snakepit'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-3', 'q-play-4', "
 "'q-chart-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  ("['instrumental', 'psychedelic rock', 'space rock', 'progressive rock', "
 "'psychedelic']")
                                     'discogstags'  "['electronic', 'rock', 'space rock', 'psychedelic rock', 'ambient']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  '12'
                                            'date'  '1998'
                                        'comments'  ''
                                           'genre'  'rock-cppex-psychedelic-space;set-pl-progspace'
                                             'bpm'  '109'
                                             'key'  '4A'
                                        'acoustid'  'ed8cc906-2eec-47c6-9ce0-bb7f3d9db930'
rest: ''

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

'APIC:Front Cover'                                  type PictureType.COVER_FRONT (Cover (front)) b'Front Cover'
                                     
'TALB' (Album/Movie/Show title)                     'Erpland'
'TBPM' (BPM (beats per minute))                     '109'
'TCON' (Content type, a.k.a. Genre)                 ['rock-cppex-psychedelic-space', 'set-pl-progspace']
'TDOR' (Original release time)                      '1990'
'TDRC' (Recording time)                             '1998'
'TIT2' (Title/songname/content description)         'Snakepit'
'TKEY' (Initial key)                                '4A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Ozric Tentacles'
'TPE2' (Band/orchestra/accompaniment)               'Ozric Tentacles'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Original Masters'
'TRCK' (Track number/Position in set)               '10/12'
'TSO2'                                              'Ozric Tentacles'
'TSOP' (Performer sort order)                       'Ozric Tentacles'
'TXXX:Acoustid Id'                                  'ed8cc906-2eec-47c6-9ce0-bb7f3d9db930'
'TXXX:Artists'                                      'Ozric Tentacles'
'TXXX:BARCODE'                                      '636551555425'
'TXXX:CATALOGNUMBER'                                'SMM CD 554'
'TXXX:MusicBrainz Album Artist Id'                  '5629ca87-9086-48c4-8dc4-b4a966c45067'
'TXXX:MusicBrainz Album Id'                         '788d5b1f-e390-49a7-a80a-2690d3eda6e6'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '5629ca87-9086-48c4-8dc4-b4a966c45067'
'TXXX:MusicBrainz Release Group Id'                 'd6978437-ee4e-31b2-afe6-4693a7e9e697'
'TXXX:MusicBrainz Release Track Id'                 'aa04409e-2760-3900-b8d8-669ca5874dc7'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['electronic', 'rock', 'space rock', 'psychedelic rock', 'ambient']
'TXXX:lastfmtags'                                   ['instrumental',
 'psychedelic rock',
 'space rock',
 'progressive rock',
 'psychedelic']
'TXXX:originalyear'                                 '1990'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '4'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.29 dB'
'TXXX:replaygain_track_peak'                        '0.757620'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'9c476291-f06f-4e5e-9229-7ac08b8cab33')

========================== row from database ==========================
                                              'id'  247103
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/0psy/Ozric tentacles/Ozric Tentacles - Erpland - 10-12 - Snakepit.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  197
                                           'genre'  rock-cppex-psychedelic-space;set-pl-progspace
                                        'filesize'  8072396
                                           'mtime'  1620735992
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 0psy tentacles 10 12 rock cppex psychedelic space;set progspace
                                      'tag_artist'  Ozric Tentacles
                                     'tag_release'  Erpland
                                       'tag_title'  Snakepit
                                             'bpm'  109.0
                                    'search_title'  'snakepit':1
                                   'search_artist'  'ozric':1 'tentacles':2
                                  'search_release'  'erpland':1
                                     'search_rest'  '0psy':1 'cppex':4 'progspace':10 'psychedelic':5 'rock':3 'set':7,9 'space':6,8 'tentacles':2
                                    'search_combo'  '0psy':5 'cppex':8 'erpland':4C 'ozric':2B 'progspace':14 'psychedelic':9 'rock':7 'set':11,13 'snakepit':1A 'space':10,12 'tentacles':3B,6
                                    'tag_tracknum'  10
                                      'num_images'  1
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-4', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['instrumental', 'psychedelic rock', 'space rock', 'progressive rock', 'psychedelic']
                                        'tag_date'  1998
                                     'discogstags'  ['electronic', 'rock', 'space rock', 'psychedelic rock', 'ambient']

============================== file details ==============================
                                           'mtime'  1620735992.0163405  (2021-05-11 14:26:32)
                             'size'  8072396