======================== unified (from filesystem) ========================
                                         'bitrate'  '188.82'
                                        'duration'  '119'
                                          'artist'  'Bump'
                                     'text_people'  ''
                                         'release'  'Tellus #10: All Guitars!'
                                           'title'  'I am a Rat'
                                           '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-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['house', 'psychedelic rock', 'rock', 'classic rock']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  ''
                                            'date'  '1985'
                                        'comments'  ''
                                           'genre'  'electronic-experimental-oddness'
                                             'bpm'  '138.8'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Tellus #10: All Guitars!'
'TBPM' (BPM (beats per minute))                     '138.8'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental-oddness'
'TDRC' (Recording time)                             '1985'
'TIT2' (Title/songname/content description)         'I am a Rat'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Bump'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '13'
'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'                                  'electronic'
'TXXX:lastfmtags'                                   ['house', 'psychedelic rock', 'rock', 'classic rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'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'                        '+0.80 dB'
'TXXX:replaygain_track_peak'                        '0.606882'

========================== row from database ==========================
                                              'id'  411426
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Tellus Audio Cassette Magazine/1985 - Tellus #10 - All Guitars/13 - Bump - I am a Rat.mp3
                                         'working'  None
                                         'bitrate'  188
                                    'duration_sec'  119
                                           'genre'  electronic-experimental-oddness
                                        'filesize'  2843786
                                           'mtime'  1628358350
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Audio Cassette Magazine 1985 13 electronic experimental oddness
                                      'tag_artist'  Bump
                                     'tag_release'  Tellus #10: All Guitars!
                                       'tag_title'  I am a Rat
                                             'bpm'  138.8
                                    'search_title'  'a':3 'am':2 'i':1 'rat':4
                                   'search_artist'  'bump':1
                                  'search_release'  '10':2,3 'all':4 'guitars':5 'tellus':1
                                     'search_rest'  '1985':4 'audio':1 'cassette':2 'electronic':5 'experimental':6 'magazine':3 'oddness':7
                                    'search_combo'  '10':7C,8C '1985':14 'a':3A 'all':9C 'am':2A 'audio':11 'bump':5B 'cassette':12 'electronic':15 'experimental':16 'guitars':10C 'i':1A 'magazine':13 'oddness':17 'rat':4A 'tellus':6C
                                    'tag_tracknum'  13
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-3', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['house', 'psychedelic rock', 'rock', 'classic rock']
                                        'tag_date'  1985
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1628358349.8958888  (2021-08-07 19:45:49)
                             'size'  2843786