======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '257'
                                          'artist'  'Major Lazer'
                                     'text_people'  ''
                                         'release'  'LAZER STRIKES BACK Vol. 6'
                                           'title'  "Get Free (Mungo's Hi Fi Refix)"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-3', 'Q-UNU-2', 'Q-HHRNBTT-2', 'Q-OLDST-2', "
 "'Q-LOCALNESS-3', 'q-syn-2', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-2', 'q-other-1', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['reggae', 'dub', 'electro', 'electronic', 'dancehall']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  '11'
                                            'date'  '2014'
                                        'comments'  ''
                                           'genre'  'loc-style-reggae or dub or ska or dancehall-unsorted'
                                             'bpm'  '88.0'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:iTunNORM:eng'                                 (' 000006F4 000006D2 0000E47E 0000DA46 00005878 00005878 0000887A 00008942 '
 '0001BBFA 0002D0EB')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000984 0000000000AD106C 00000000 009CE344 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'TALB' (Album/Movie/Show title)                     'LAZER STRIKES BACK Vol. 6'
'TBPM' (BPM (beats per minute))                     '88.0'
'TCON' (Content type, a.k.a. Genre)                 'loc-style-reggae or dub or ska or dancehall-unsorted'
'TDRC' (Recording time)                             '2014'
'TENC' (Encoded by)                                 'iTunes 11.1.3'
'TIT2' (Title/songname/content description)         "Get Free (Mungo's Hi Fi Refix)"
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Major Lazer'
'TRCK' (Track number/Position in set)               '5/11'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['reggae', 'dub', 'electro', 'electronic', 'dancehall']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.70 dB'
'TXXX:replaygain_track_peak'                        '0.634493'

========================== row from database ==========================
                                              'id'  1506285
                                            'path'  /data/Music/Bulk/00localcharacter/Reggae/05 Get Free (Mungo_s Hi Fi Refix).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  257
                                           'genre'  loc-style-reggae or dub or ska or dancehall-unsorted
                                        'filesize'  11043564
                                           'mtime'  1620523557
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter Reggae 05 (Mungo_s loc style reggae dub ska dancehall unsorted
                                      'tag_artist'  Major Lazer
                                     'tag_release'  LAZER STRIKES BACK Vol. 6
                                       'tag_title'  Get Free (Mungo's Hi Fi Refix)
                                             'bpm'  88.0
                                    'search_title'  'fi':7 'free':2 'get':1 'hi':6 'mungo':3 'mungos':5 'refix':8,9 's':4
                                   'search_artist'  'lazer':2 'major':1
                                  'search_release'  '6':6 'back':3 'lazer':1 'strikes':2 'vol':4,5
                                     'search_rest'  'dancehall':10 'dub':8 'loc':6 'mungo':2,4 'reggae':1 's':3,5 'ska':9 'style':7 'unsorted':11
                                    'search_combo'  '6':17C 'back':14C 'dancehall':27 'dub':25 'fi':7A 'free':2A 'get':1A 'hi':6A 'lazer':11B,12C 'loc':23 'major':10B 'mungo':3A,19,21 'mungos':5A 'refix':8A,9A 'reggae':18 's':4A,20,22 'ska':26 'strikes':13C 'style':24 'unsorted':28 'vol':15C,16C
                                    'tag_tracknum'  5
                                      'num_images'  1
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-2', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-3', 'q-busy-2', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['reggae', 'dub', 'electro', 'electronic', 'dancehall']
                                        'tag_date'  2014
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620523557.3685648  (2021-05-09 03:25:57)
                             'size'  11043564