======================== unified (from filesystem) ========================
                                         'bitrate'  '316.478'
                                        'duration'  '224'
                                          'artist'  'Guitar Wolf'
                                     'text_people'  ''
                                         'release'  'UFO Romantics'
                                           'title'  "Lightning's Melody"
                                           'quals'  ("['Q-OLDST-3', 'Q-LOCALNESS-2', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HAP-2', "
 "'Q-HHRNBTT-1', 'q-bass-1', 'q-drums-2', 'q-other-4', 'q-piano-1', "
 "'q-vocals-2', 'Q-SYN-2', 'Q-BUSY-3', 'Q-GRIT-3', 'Q-PLAY-2', 'Q-CHART-2', "
 "'Q-MIXBEAT-2']")
                                      'lastfmtags'  "['garage punk', 'punk', 'j-rock', 'japanese', 'garage rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  ''
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'rock-gr-garage;loc-asia-japan'
                                             'bpm'  '128.8'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'UFO Romantics'
'TBPM' (BPM (beats per minute))                     '128.8'
'TCON' (Content type, a.k.a. Genre)                 ['rock-gr-garage', 'loc-asia-japan']
'TDRC' (Recording time)                             '2002'
'TENC' (Encoded by)                                 'Mr. Smoketoomuch.'
'TIT2' (Title/songname/content description)         "Lightning's Melody"
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'Guitar Wolf'
'TRCK' (Track number/Position in set)               '13'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '3'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-MIXBEAT'                                    '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-SYN'                                        '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['garage punk', 'punk', 'j-rock', 'japanese', 'garage rock']
'TXXX:q-bass'                                       '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.73 dB'
'TXXX:replaygain_track_peak'                        '0.302123'

========================== row from database ==========================
                                              'id'  1514848
                                            'path'  /data/Music/Bulk/00localcharacter/Guitar Wolf/UFO Romantics (2002)/13 - Lightning_s Melody.mp3
                                         'working'  None
                                         'bitrate'  316
                                    'duration_sec'  224
                                           'genre'  rock-gr-garage;loc-asia-japan
                                        'filesize'  8900969
                                           'mtime'  1620385940
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter (2002) 13 Lightning_s rock gr garage;loc asia japan
                                      'tag_artist'  Guitar Wolf
                                     'tag_release'  UFO Romantics
                                       'tag_title'  Lightning's Melody
                                             'bpm'  128.8
                                    'search_title'  'lightning':1 'lightnings':3 'melody':4 's':2
                                   'search_artist'  'guitar':1 'wolf':2
                                  'search_release'  'romantics':2 'ufo':1
                                     'search_rest'  '2002':1,2 'asia':11 'garage':7,9 'gr':6 'japan':12 'lightning':3 'loc':8,10 'rock':5 's':4
                                    'search_combo'  '2002':9,10 'asia':19 'garage':15,17 'gr':14 'guitar':5B 'japan':20 'lightning':1A,11 'lightnings':3A 'loc':16,18 'melody':4A 'rock':13 'romantics':8C 's':2A,12 'ufo':7C 'wolf':6B
                                    'tag_tracknum'  13
                                      'num_images'  1
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-2', 'q-piano-1', 'Q-MIXBEAT-2', 'Q-OLDST-3', 'Q-GRIT-3', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-CHART-2', 'q-drums-2', 'Q-SYN-2', 'q-other-4', 'Q-BUSY-3', 'Q-HAP-2', 'Q-PLAY-2', 'q-bass-1']
                                      'lastfmtags'  ['garage punk', 'punk', 'j-rock', 'japanese', 'garage rock']
                                        'tag_date'  2002
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620385939.5840485  (2021-05-07 13:12:19)
                             'size'  8900969