======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '305'
                                          'artist'  'Ben Johnston'
                                     'text_people'  ''
                                         'release'  'Tellus #14: Just Intonation'
                                           'title'  'Tocatta for Violincello'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', "
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                                      'lastfmtags'  ("['contemporary classical', 'microtonal', 'avant-garde', 'chamber music', "
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                                     'discogstags'  "['classical']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  ''
                                            'date'  '1986'
                                        'comments'  ''
                                           'genre'  'electronic-experimental-oddness'
                                             'bpm'  '131.3'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Tellus #14: Just Intonation'
'TBPM' (BPM (beats per minute))                     '131.3'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental-oddness'
'TDRC' (Recording time)                             '1986'
'TIT2' (Title/songname/content description)         'Tocatta for Violincello'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Ben Johnston'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '10'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '3'
'TXXX:discogstags'                                  'classical'
'TXXX:lastfmtags'                                   ['contemporary classical',
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 'avant-garde',
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 'just intonation']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.15 dB'
'TXXX:replaygain_track_peak'                        '0.530243'

========================== row from database ==========================
                                              'id'  308637
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Tellus Audio Cassette Magazine/1986 - Tellus #14 - Just Intonation/10 - Ben Johnston - Tocatta for Violincello.mp3
                                         'working'  None
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                                    'duration_sec'  305
                                           'genre'  electronic-experimental-oddness
                                        'filesize'  7590446
                                           'mtime'  1628358181
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Audio Cassette Magazine 1986 10 electronic experimental oddness
                                      'tag_artist'  Ben Johnston
                                     'tag_release'  Tellus #14: Just Intonation
                                       'tag_title'  Tocatta for Violincello
                                             'bpm'  131.3
                                    'search_title'  'for':2 'tocatta':1 'violincello':3
                                   'search_artist'  'ben':1 'johnston':2
                                  'search_release'  '14':2,3 'intonation':5 'just':4 'tellus':1
                                     'search_rest'  '1986':4 'audio':1 'cassette':2 'electronic':5 'experimental':6 'magazine':3 'oddness':7
                                    'search_combo'  '14':7C,8C '1986':14 'audio':11 'ben':4B 'cassette':12 'electronic':15 'experimental':16 'for':2A 'intonation':10C 'johnston':5B 'just':9C 'magazine':13 'oddness':17 'tellus':6C 'tocatta':1A 'violincello':3A
                                    'tag_tracknum'  10
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-3', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-4', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['contemporary classical', 'microtonal', 'avant-garde', 'chamber music', 'just intonation']
                                        'tag_date'  1986
                                     'discogstags'  ['classical']

============================== file details ==============================
                                           'mtime'  1628358180.5361955  (2021-08-07 19:43:00)
                             'size'  7590446