======================== unified (from filesystem) ========================
                                         'bitrate'  '221.27'
                                        'duration'  '306'
                                          'artist'  'Bif Naked'
                                     'text_people'  ''
                                         'release'  'Bif Naked'
                                           'title'  'The Letter'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-OLDST-3', 'Q-JZFKS-2', 'Q-LOCALNESS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['venom covers; blackpeople; funk italiana']"
                                     'discogstags'  ("['electronic', 'rock', 'non-music', 'pop', 'punk', 'alternative rock', "
 "'breakbeat', 'spoken word']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  ''
                                            'date'  '1994'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-rock;mi-guitar-electric'
                                             'bpm'  '121.482'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            "Her Royal Majesty's Records"
'TALB' (Album/Movie/Show title)                     'Bif Naked'
'TBPM' (BPM (beats per minute))                     '121.482'
'TCON' (Content type, a.k.a. Genre)                 ['ifs-songwriter-rock', 'mi-guitar-electric']
'TDRC' (Recording time)                             '1994'
'TIT2' (Title/songname/content description)         'The Letter'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Bif Naked'
'TRCK' (Track number/Position in set)               '9'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic',
 'rock',
 'non-music',
 'pop',
 'punk',
 'alternative rock',
 'breakbeat',
 'spoken word']
'TXXX:lastfmtags'                                   'venom covers; blackpeople; funk italiana'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.33 dB'
'TXXX:replaygain_track_peak'                        '0.588324'

========================== row from database ==========================
                                              'id'  1309981
                                            'path'  /data/Music/Bulk/00poprockelectronic-poprock-indierock/Bif Naked/Bif Naked 1996/Bif Naked - Bif Naked - 09 - The Letter.mp3
                                         'working'  None
                                         'bitrate'  221
                                    'duration_sec'  306
                                           'genre'  ifs-songwriter-rock;mi-guitar-electric
                                        'filesize'  8486237
                                           'mtime'  1642081055
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic poprock indierock 1996 09 ifs songwriter rock;mi guitar electric
                                      'tag_artist'  Bif Naked
                                     'tag_release'  Bif Naked
                                       'tag_title'  The Letter
                                             'bpm'  121.482
                                    'search_title'  'letter':2 'the':1
                                   'search_artist'  'bif':1 'naked':2
                                  'search_release'  'bif':1 'naked':2
                                     'search_rest'  '00poprockelectronic':1 '1996':4 'electric':12 'guitar':11 'ifs':5 'indierock':3 'mi':8,10 'poprock':2 'rock':7,9 'songwriter':6
                                    'search_combo'  '00poprockelectronic':7 '1996':10 'bif':3B,5C 'electric':18 'guitar':17 'ifs':11 'indierock':9 'letter':2A 'mi':14,16 'naked':4B,6C 'poprock':8 'rock':13,15 'songwriter':12 'the':1A
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HAP-3', 'Q-UNU-1', 'Q-OLDST-3', 'Q-JZFKS-2', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-2']
                                      'lastfmtags'  ['venom covers; blackpeople; funk italiana']
                                        'tag_date'  1994
                                     'discogstags'  ['electronic', 'rock', 'non-music', 'pop', 'punk', 'alternative rock', 'breakbeat', 'spoken word']

============================== file details ==============================
                                           'mtime'  1642081054.787901  (2022-01-13 14:37:34)
                             'size'  8486237