======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '189'
                                          'artist'  'The Offspring'
                                     'text_people'  'The Offspring'
                                         'release'  'Greatest Hits'
                                           'title'  'Pretty Fly (For a White Guy)'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-3', 'q-play-2', "
 "'q-chart-4', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['alternative rock', 'punk rock', 'punk', 'alternative', 'rock']"
                                     'discogstags'  "['rock', 'alternative rock', 'punk', 'pop punk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'rock-gr-punk'
                                             'bpm'  '145'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'Greatest Hits'
'TBPM' (BPM (beats per minute))                     '145'
'TCOM' (Composer)                                   'The Offspring'
'TCON' (Content type, a.k.a. Genre)                 'rock-gr-punk'
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         'Pretty Fly (For a White Guy)'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Offspring'
'TPE2' (Band/orchestra/accompaniment)               'The Offspring'
'TPUB' (Publisher)                                  'Columbia'
'TRCK' (Track number/Position in set)               '7'
'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'                                  ['rock', 'alternative rock', 'punk', 'pop punk']
'TXXX:lastfmtags'                                   ['alternative rock', 'punk rock', 'punk', 'alternative', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.68 dB'
'TXXX:replaygain_track_peak'                        '0.445160'

========================== row from database ==========================
                                              'id'  1418433
                                            'path'  /data/Music/Bulk/00popandrock-punk-garage-surf-stoner/The Offspring - Offspring/Greatest Hits/Offspring - Pretty Fly For A White Guy.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  189
                                           'genre'  rock-gr-punk
                                        'filesize'  3030651
                                           'mtime'  1622659187
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock punk garage surf stoner A rock gr punk
                                      'tag_artist'  The Offspring
                                     'tag_release'  Greatest Hits
                                       'tag_title'  Pretty Fly (For a White Guy)
                                             'bpm'  145.0
                                    'search_title'  'a':5 'fly':2 'for':3,4 'guy':7,8 'pretty':1 'white':6
                                   'search_artist'  'offspring':2 'the':1
                                  'search_release'  'greatest':1 'hits':2
                                     'search_rest'  'a':5 'garage':2 'gr':7 'punk':1 'rock':6 'stoner':4 'surf':3
                                    'search_combo'  'a':5A,17 'fly':2A 'for':3A,4A 'garage':14 'gr':19 'greatest':11C 'guy':7A,8A 'hits':12C 'offspring':10B 'pretty':1A 'punk':13 'rock':18 'stoner':16 'surf':15 'the':9B 'white':6A
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-4', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['alternative rock', 'punk rock', 'punk', 'alternative', 'rock']
                                        'tag_date'  2005
                                     'discogstags'  ['rock', 'alternative rock', 'punk', 'pop punk']

============================== file details ==============================
                                           'mtime'  1622659186.7320094  (2021-06-02 20:39:46)
                             'size'  3030651