======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '202'
                                          'artist'  'Merry'
                                     'text_people'  ''
                                         'release'  'nu CHEMICAL RHETORIC'
                                           'title'  'Kubitsuri Rondo'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
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 "'q-chart-1', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['rock', 'visual kei', 'japanese', 'eroguro', 'j rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  '11'
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'loc-asia-japan'
                                             'bpm'  '93.328'
                                             'key'  '9A'
                                        'acoustid'  'd39ed1ef-4871-45df-be94-7f84e1d8a667'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 00003EA4 00003114 00008E85'
'COMM:iTunNORM:eng'                                 (' 00003EA4 00003114 00008E85 00006EEE 0002230E 0001FBFE 00007F18 00007A27 '
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'MCDI' (Music CD identifier)                        MCDI(data=b'B\x00+\x009\x006\x00+\x001\x00F\x004\x00F\x00+\x005\x00A\x00D\x00F\x00+\x008\x00D\x002\x002\x00+\x00C\x008\x000\x00D\x00+\x001\x000\x00E\x000\x00F\x00+\x001\x006\x000\x00D\x000\x00+\x001\x00A\x008\x008\x008\x00+\x001\x00F\x004\x002\x006\x00+\x002\x001\x00E\x004\x002\x00+\x002\x006\x004\x00E\x004\x00+\x002\x00A\x006\x006\x00E\x00\x00\x00')
'TALB' (Album/Movie/Show title)                     'nu CHEMICAL RHETORIC'
'TBPM' (BPM (beats per minute))                     '93.328'
'TCON' (Content type, a.k.a. Genre)                 'loc-asia-japan'
'TDOR' (Original release time)                      '2005'
'TDRC' (Recording time)                             '2006-06-02'
'TIT2' (Title/songname/content description)         'Kubitsuri Rondo'
'TKEY' (Initial key)                                '9A'
'TLEN' (Length)                                     '203306'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Merry'
'TPE2' (Band/orchestra/accompaniment)               'Merry'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'GAN-SHIN'
'TRCK' (Track number/Position in set)               '2/11'
'TSO2'                                              'MERRY'
'TSOP' (Performer sort order)                       'MERRY'
'TSRC' (ISRC (international standard recording code))  'JPVI00522770'
'TXXX:ASIN'                                         'B000EPFNVC'
'TXXX:Acoustid Id'                                  'd39ed1ef-4871-45df-be94-7f84e1d8a667'
'TXXX:Artists'                                      'Merry'
'TXXX:BARCODE'                                      '4027792000830'
'TXXX:CATALOGNUMBER'                                'GSCD-012'
'TXXX:MusicBrainz Album Artist Id'                  '724a879a-77a9-44e7-89c8-8c600cc92861'
'TXXX:MusicBrainz Album Id'                         'f5c07fea-5c0e-40b9-939f-8a11ace46471'
'TXXX:MusicBrainz Album Release Country'            'DE'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '724a879a-77a9-44e7-89c8-8c600cc92861'
'TXXX:MusicBrainz Release Group Id'                 'c9fe263d-fb3c-35e7-9913-fdb9a7b4f157'
'TXXX:MusicBrainz Release Track Id'                 '0cdad09e-a343-3e25-ba8a-108c9818314d'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['rock', 'visual kei', 'japanese', 'eroguro', 'j rock']
'TXXX:originalyear'                                 '2005'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.22 dB'
'TXXX:replaygain_track_peak'                        '0.271442'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'f40f1db9-2b67-44ea-92dc-4bda5be98355')

========================== row from database ==========================
                                              'id'  313344
                                            'path'  /data/Music/Bulk/00localcharacter/Merii/nu-Chemical Rhetoric/02 kubitsuri rondo.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  202
                                           'genre'  loc-asia-japan
                                        'filesize'  4938444
                                           'mtime'  1622821602
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter Merii Chemical Rhetoric 02 kubitsuri rondo loc asia japan
                                      'tag_artist'  Merry
                                     'tag_release'  nu CHEMICAL RHETORIC
                                       'tag_title'  Kubitsuri Rondo
                                             'bpm'  93.328
                                    'search_title'  'kubitsuri':1 'rondo':2
                                   'search_artist'  'merry':1
                                  'search_release'  'chemical':2 'nu':1 'rhetoric':3
                                     'search_rest'  'asia':7 'chemical':2 'japan':8 'kubitsuri':4 'loc':6 'merii':1 'rhetoric':3 'rondo':5
                                    'search_combo'  'asia':13 'chemical':5C,8 'japan':14 'kubitsuri':1A,10 'loc':12 'merii':7 'merry':3B 'nu':4C 'rhetoric':6C,9 'rondo':2A,11
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['rock', 'visual kei', 'japanese', 'eroguro', 'j rock']
                                        'tag_date'  2006
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1622821601.9256334  (2021-06-04 17:46:41)
                             'size'  4938444