======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '248'
                                          'artist'  '東京スカパラダイスオーケストラ'
                                     'text_people'  ''
                                         'release'  'Grand Prix'
                                           'title'  'What a Wonderful World'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['ska jazz', 'jazz', 'japanese', 'j ska', 'ska', 'japanese ska']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  '14'
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'loc-style-reggae or dub or ska or dancehall-ska'
                                             'bpm'  '90.5'
                                             'key'  '4B'
                                        'acoustid'  '9a6e9798-a742-4843-b9eb-badeb21b31f4'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Grand Prix'
'TBPM' (BPM (beats per minute))                     '90.5'
'TCON' (Content type, a.k.a. Genre)                 'loc-style-reggae or dub or ska or dancehall-ska'
'TDOR' (Original release time)                      '1995'
'TDRC' (Recording time)                             '1995-06-21'
'TIT2' (Title/songname/content description)         'What a Wonderful World'
'TKEY' (Initial key)                                '4B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               '東京スカパラダイスオーケストラ feat. Misty Oldland'
'TPE2' (Band/orchestra/accompaniment)               '東京スカパラダイスオーケストラ'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '7/14'
'TSO2'                                              'Tokyo Ska Paradise Orchestra'
'TSOP' (Performer sort order)                       'Tokyo Ska Paradise Orchestra feat. Misty Oldland'
'TXXX:ASIN'                                         'B00005G4J6'
'TXXX:Acoustid Id'                                  '9a6e9798-a742-4843-b9eb-badeb21b31f4'
'TXXX:Artists'                                      '東京スカパラダイスオーケストラ/Misty Oldland'
'TXXX:MusicBrainz Album Artist Id'                  'd77f4539-0661-4741-9307-60ebbd72f5ee'
'TXXX:MusicBrainz Album Id'                         '81582c87-153e-4269-8226-8080997a23cc'
'TXXX:MusicBrainz Album Release Country'            'JP'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'd77f4539-0661-4741-9307-60ebbd72f5ee/84231cd8-3c7e-44f3-84d4-b1ab539d0a61'
'TXXX:MusicBrainz Release Group Id'                 '6e43548e-7bbc-3189-b91d-e0e506f9a090'
'TXXX:MusicBrainz Release Track Id'                 'c0038481-7b4b-3d98-8de5-f6827d28f649'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['ska jazz', 'jazz', 'japanese', 'j ska', 'ska', 'japanese ska']
'TXXX:originalyear'                                 '1995'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.56 dB'
'TXXX:replaygain_track_peak'                        '0.508613'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'f3334fe9-c641-409f-acd5-118e2c1b0086')

========================== row from database ==========================
                                              'id'  1279195
                                            'path'  /data/Music/Bulk/00localcharacter/Artiste - Tokyo Ska Paradise Orchestra/1995 - GRAND PRIX/07 - what a wonderful world.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  248
                                           'genre'  loc-style-reggae or dub or ska or dancehall-ska
                                        'filesize'  4067102
                                           'mtime'  1620522922
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter Artiste Tokyo Ska Paradise Orchestra 1995 GRAND PRIX 07 what wonderful world loc style reggae dub ska dancehall ska
                                      'tag_artist'  東京スカパラダイスオーケストラ
                                     'tag_release'  Grand Prix
                                       'tag_title'  What a Wonderful World
                                             'bpm'  90.5
                                    'search_title'  'a':2 'what':1 'wonderful':3 'world':4
                                   'search_artist'  '東京sukaharataisuokesutora':2 '東京スカパラダイスオーケストラ':1
                                  'search_release'  'grand':1 'prix':2
                                     'search_rest'  '1995':6 'artiste':1 'dancehall':16 'dub':15 'grand':7 'loc':12 'orchestra':5 'paradise':4 'prix':8 'reggae':14 'ska':3 'style':13 'tokyo':2 'what':9 'wonderful':10 'world':11
                                    'search_combo'  '1995':14 'a':2A 'artiste':9 'dancehall':24 'dub':23 'grand':7C,15 'loc':20 'orchestra':13 'paradise':12 'prix':8C,16 'reggae':22 'ska':11 'style':21 'tokyo':10 'what':1A,17 'wonderful':3A,18 'world':4A,19 '東京sukaharataisuokesutora':6B '東京スカパラダイスオーケストラ':5B
                                    'tag_tracknum'  7
                                      'num_images'  1
                                             'key'  4B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-3', 'q-syn-3', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['ska jazz', 'jazz', 'japanese', 'j ska', 'ska', 'japanese ska']
                                        'tag_date'  1995
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620522922.362826  (2021-05-09 03:15:22)
                             'size'  4067102