======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '174'
                                          'artist'  'Carola B. Anderson'
                                     'text_people'  ''
                                         'release'  'Tellus #14: Just Intonation'
                                           'title'  'Shibboleth'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-UNU-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
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                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '03'
                                      'tracktotal'  ''
                                            'date'  '1986'
                                        'comments'  ''
                                           'genre'  'electronic-experimental-oddness'
                                             'bpm'  '106.4'
                                             'key'  '8A'
                                        '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))                     '106.4'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental-oddness'
'TDRC' (Recording time)                             '1986'
'TIT2' (Title/songname/content description)         'Shibboleth'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Carola B. Anderson'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '03'
'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:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'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'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.87 dB'
'TXXX:replaygain_track_peak'                        '0.588117'

========================== row from database ==========================
                                              'id'  457144
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Tellus Audio Cassette Magazine/1986 - Tellus #14 - Just Intonation/03 - Carola B. Anderson - Shibboleth.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  174
                                           'genre'  electronic-experimental-oddness
                                        'filesize'  4443837
                                           'mtime'  1628358182
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Audio Cassette Magazine 1986 03 electronic experimental oddness
                                      'tag_artist'  Carola B. Anderson
                                     'tag_release'  Tellus #14: Just Intonation
                                       'tag_title'  Shibboleth
                                             'bpm'  106.4
                                    'search_title'  'shibboleth':1
                                   'search_artist'  'anderson':4 'b':2,3 'carola':1
                                  '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 'anderson':5B 'audio':11 'b':3B,4B 'carola':2B 'cassette':12 'electronic':15 'experimental':16 'intonation':10C 'just':9C 'magazine':13 'oddness':17 'shibboleth':1A 'tellus':6C
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  8A
                                           '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-4', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1986
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1628358181.7824256  (2021-08-07 19:43:01)
                             'size'  4443837