======================== unified (from filesystem) ========================
                                         'bitrate'  '198.928'
                                        'duration'  '207'
                                          'artist'  'Smash Mouth'
                                     'text_people'  ''
                                         'release'  'Fush Yu Mang'
                                           'title'  "Walkin' on the Sun"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-3', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-4']")
                                      'lastfmtags'  "['alternative rock', 'alternative', 'ska', 'pop', 'rock']"
                                     'discogstags'  "['rock', 'pop rock', 'ska']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '1997'
                                        'comments'  ''
                                           'genre'  'electronic-th-breakbeat or dnb or jungle'
                                             'bpm'  '123.181'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Fush Yu Mang'
'TBPM' (BPM (beats per minute))                     '123.181'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-breakbeat or dnb or jungle'
'TDRC' (Recording time)                             '1997'
'TIT2' (Title/songname/content description)         "Walkin' on the Sun"
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Smash Mouth'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'pop rock', 'ska']
'TXXX:lastfmtags'                                   ['alternative rock', 'alternative', 'ska', 'pop', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '4'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.16 dB'
'TXXX:replaygain_track_peak'                        '0.328683'

========================== row from database ==========================
                                              'id'  1501360
                                            'path'  /data/Music/Bulk/00poprockelectronic/00dnb/Smash Mouth/Smash Mouth__Fush Yu Mang__MBZ;#Smash Mouth;#Fush Yu Mang;#03;#Walkin_ on the Sun.mp3
                                         'working'  None
                                         'bitrate'  198
                                    'duration_sec'  207
                                           'genre'  electronic-th-breakbeat or dnb or jungle
                                        'filesize'  5166566
                                           'mtime'  1621696653
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00dnb Mouth__Fush Mang__MBZ;#Smash Mouth;#Fush Mang;#03;#Walkin_ electronic breakbeat or dnb or jungle
                                      'tag_artist'  Smash Mouth
                                     'tag_release'  Fush Yu Mang
                                       'tag_title'  Walkin' on the Sun
                                             'bpm'  123.181
                                    'search_title'  'on':3 'sun':5 'the':4 'walkin':1,2
                                   'search_artist'  'mouth':2 'smash':1
                                  'search_release'  'fush':1 'mang':3 'yu':2
                                     'search_rest'  '00dnb':2 '00poprockelectronic':1 '03':14,17 'breakbeat':20 'dnb':22 'electronic':19 'fush':4,12 'jungle':23 'mang':5,8,13,16 'mbz':6,9 'mouth':3,11 'or':21 'smash':7,10 'walkin':15,18
                                    'search_combo'  '00dnb':12 '00poprockelectronic':11 '03':24,27 'breakbeat':30 'dnb':32 'electronic':29 'fush':8C,14,22 'jungle':33 'mang':10C,15,18,23,26 'mbz':16,19 'mouth':7B,13,21 'on':3A 'or':31 'smash':6B,17,20 'sun':5A 'the':4A 'walkin':1A,2A,25,28 'yu':9C
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-4', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-3', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['alternative rock', 'alternative', 'ska', 'pop', 'rock']
                                        'tag_date'  1997
                                     'discogstags'  ['rock', 'pop rock', 'ska']

============================== file details ==============================
                                           'mtime'  1621696652.976681  (2021-05-22 17:17:32)
                             'size'  5166566