======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '325'
                                          'artist'  'The Legendary Pink Dots'
                                     'text_people'  ''
                                         'release'  'Crushed Velvet Apocalypse'
                                           'title'  'The Death of Jack the Ripper'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-2', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['industrial', 'electronic', 'psychedelic', 'experimental', 'avantgarde']"
                                     'discogstags'  "['electronic', 'rock', 'avantgarde', 'experimental', 'psychedelic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '07'
                                      'tracktotal'  ''
                                            'date'  '1990'
                                        'comments'  ''
                                           'genre'  'electronic-experimental'
                                             'bpm'  '137.8'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Crushed Velvet Apocalypse'
'TBPM' (BPM (beats per minute))                     '137.8'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental'
'TDRC' (Recording time)                             '1990'
'TIT2' (Title/songname/content description)         'The Death of Jack the Ripper'
'TKEY' (Initial key)                                '5A'
'TLEN' (Length)                                     '326100'
'TPE1' (Lead performer(s)/Soloist(s))               'The Legendary Pink Dots'
'TRCK' (Track number/Position in set)               '07'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['electronic', 'rock', 'avantgarde', 'experimental', 'psychedelic rock']
'TXXX:lastfmtags'                                   ['industrial', 'electronic', 'psychedelic', 'experimental', 'avantgarde']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.94 dB'
'TXXX:replaygain_track_peak'                        '0.806655'

========================== row from database ==========================
                                              'id'  1378974
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/The Legendary Pink Dots - Legendary Pink Dots, The - Crushed Velvet Apocalypse [1990]/07 - The Death of Jack the Ripper.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  325
                                           'genre'  electronic-experimental
                                        'filesize'  7826075
                                           'mtime'  1622658672
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Dots, [1990] 07 electronic experimental
                                      'tag_artist'  The Legendary Pink Dots
                                     'tag_release'  Crushed Velvet Apocalypse
                                       'tag_title'  The Death of Jack the Ripper
                                             'bpm'  137.8
                                    'search_title'  'death':2 'jack':4 'of':3 'ripper':5 'the':1
                                   'search_artist'  'dots':4 'legendary':2 'pink':3 'the':1
                                  'search_release'  'apocalypse':3 'crushed':1 'velvet':2
                                     'search_rest'  '1990':3,4 'dots':1,2 'electronic':5 'experimental':6
                                    'search_combo'  '1990':15,16 'apocalypse':12C 'crushed':10C 'death':2A 'dots':9B,13,14 'electronic':17 'experimental':18 'jack':4A 'legendary':7B 'of':3A 'pink':8B 'ripper':5A 'the':1A,6B 'velvet':11C
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['industrial', 'electronic', 'psychedelic', 'experimental', 'avantgarde']
                                        'tag_date'  1990
                                     'discogstags'  ['electronic', 'rock', 'avantgarde', 'experimental', 'psychedelic rock']

============================== file details ==============================
                                           'mtime'  1622658672.22182  (2021-06-02 20:31:12)
                             'size'  7826075