======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '262'
                                          'artist'  'Quinka,with a Yawn'
                                     'text_people'  ''
                                         'release'  'Non-Mainstream Music Sampler 4'
                                           'title'  'Kuchibiru To Marmalade'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-2', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-2', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['japanese', 'folk', 'indie', 'pop', 'singer-songwriter']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  ''
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'loc-asia-japan'
                                             'bpm'  '97.318'
                                             'key'  '2B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Non-Mainstream Music Sampler 4'
'TBPM' (BPM (beats per minute))                     '97.318'
'TCON' (Content type, a.k.a. Genre)                 'loc-asia-japan'
'TDRC' (Recording time)                             '2003'
'TIT2' (Title/songname/content description)         'Kuchibiru To Marmalade'
'TKEY' (Initial key)                                '2B'
'TPE1' (Lead performer(s)/Soloist(s))               'Quinka,with a Yawn'
'TRCK' (Track number/Position in set)               '5'
'TSSE' (Software/Hardware and settings used for encoding)  'SuperTagEditor Ver 2.01'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['japanese', 'folk', 'indie', 'pop', 'singer-songwriter']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-1.58 dB'
'TXXX:replaygain_track_peak'                        '0.499340'

========================== row from database ==========================
                                              'id'  1395029
                                            'path'  /data/Music/Bulk/00localcharacter/00asia/Quinka,with a Yawn - Non-Mainstream Music Sampler 4/Quinka,with a Yawn - Kuchibiru To Marmalade.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  262
                                           'genre'  loc-asia-japan
                                        'filesize'  10491810
                                           'mtime'  1637330158
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00asia loc asia japan
                                      'tag_artist'  Quinka,with a Yawn
                                     'tag_release'  Non-Mainstream Music Sampler 4
                                       'tag_title'  Kuchibiru To Marmalade
                                             'bpm'  97.318
                                    'search_title'  'kuchibiru':1 'marmalade':3 'to':2
                                   'search_artist'  'a':5 'quinka':1,3 'with':2,4 'yawn':6
                                  'search_release'  '4':6 'mainstream':2 'music':4 'non':1 'nonmainstream':3 'sampler':5
                                     'search_rest'  '00asia':1 'asia':3 'japan':4 'loc':2
                                    'search_combo'  '00asia':16 '4':15C 'a':8B 'asia':18 'japan':19 'kuchibiru':1A 'loc':17 'mainstream':11C 'marmalade':3A 'music':13C 'non':10C 'nonmainstream':12C 'quinka':4B,6B 'sampler':14C 'to':2A 'with':5B,7B 'yawn':9B
                                    'tag_tracknum'  5
                                      'num_images'  1
                                             'key'  2B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-1', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['japanese', 'folk', 'indie', 'pop', 'singer-songwriter']
                                        'tag_date'  2003
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1637330158.2013025  (2021-11-19 14:55:58)
                             'size'  10491810