======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '255'
                                          'artist'  'The Dresden Dolls'
                                     'text_people'  ''
                                         'release'  'Various Live'
                                           'title'  'I Love Rock & Roll (Joan Jett)'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-4', "
 "'q-chart-3', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['punk cabaret', 'indie', 'cabaret', 'dark cabaret', 'dresden dolls']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter;ifs-songwriter-eos'
                                             'bpm'  '97.883'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Various Live'
'TBPM' (BPM (beats per minute))                     '97.883'
'TCON' (Content type, a.k.a. Genre)                 ['ifs-songwriter', 'ifs-songwriter-eos']
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'I Love Rock & Roll (Joan Jett)'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Dresden Dolls'
'TRCK' (Track number/Position in set)               '4'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['punk cabaret', 'indie', 'cabaret', 'dark cabaret', 'dresden dolls']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '4'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.01 dB'
'TXXX:replaygain_track_peak'                        '0.970321'

========================== row from database ==========================
                                              'id'  1380803
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/00songwriter-eos/Dresden Dolls & Amanda Palmer/Live, misc/The Dresden Dolls - I Love Rock & Roll (Live Joan Jett Cover).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  255
                                           'genre'  ifs-songwriter;ifs-songwriter-eos
                                        'filesize'  4082159
                                           'mtime'  1636401354
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 00songwriter eos Amanda Palmer Live, misc (Live Cover) ifs songwriter;ifs songwriter eos
                                      'tag_artist'  The Dresden Dolls
                                     'tag_release'  Various Live
                                       'tag_title'  I Love Rock & Roll (Joan Jett)
                                             'bpm'  97.883
                                    'search_title'  'i':1 'jett':7,8 'joan':5,6 'love':2 'rock':3 'roll':4
                                   'search_artist'  'dolls':3 'dresden':2 'the':1
                                  'search_release'  'live':2 'various':1
                                     'search_rest'  '00singer':1 '00songwriter':4 'amanda':5 'cover':11,12 'eos':3 'ifs':13,15,17 'live':7,8,10 'misc':9 'palmer':6 'songwriter':2,14,16
                                    'search_combo'  '00singer':14 '00songwriter':17 'amanda':18 'cover':24,25 'dolls':11B 'dresden':10B 'eos':16 'i':1A 'ifs':26,28,30 'jett':7A,8A 'joan':5A,6A 'live':13C,20,21,23 'love':2A 'misc':22 'palmer':19 'rock':3A 'roll':4A 'songwriter':15,27,29 'the':9B 'various':12C
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-4', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['punk cabaret', 'indie', 'cabaret', 'dark cabaret', 'dresden dolls']
                                        'tag_date'  2000
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1636401354.4155855  (2021-11-08 20:55:54)
                             'size'  4082159