======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '20'
                                          'artist'  'Daniel Johnston'
                                     'text_people'  'Daniel Johnston'
                                         'release'  'Hi, How Are You'
                                           'title'  "I'll Never Marry"
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'lo fi', 'outsider', 'folk', 'singer songwriter']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  '15'
                                            'date'  '1986'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie'
                                             'bpm'  '118'
                                             'key'  '4B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'PRIV:WM/MediaClassPrimaryID:¼}`Ñ#ãâK\x86¡H¤*(D\x1e'  PRIV(owner='WM/MediaClassPrimaryID', data=b'\xbc}`\xd1#\xe3\xe2K\x86\xa1H\xa4*(D\x1e')
'PRIV:WM/MediaClassSecondaryID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/MediaClassSecondaryID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
'PRIV:WM/Provider:A\x00M\x00G\x00\x00\x00'          PRIV(owner='WM/Provider', data=b'A\x00M\x00G\x00\x00\x00')
'PRIV:WM/UniqueFileIdentifier:A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x00 \x001\x000\x005\x002\x008\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x001\x003\x003\x005\x003\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x004\x003\x005\x009\x007\x008\x003\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x00 \x001\x000\x005\x002\x008\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x001\x003\x003\x005\x003\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x004\x003\x005\x009\x007\x008\x003\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:{¯E:\x84\x07hF\x94t$\x8aû\x1a\x0fÿ'  PRIV(owner='WM/WMCollectionGroupID', data=b'{\xafE:\x84\x07hF\x94t$\x8a\xfb\x1a\x0f\xff')
'PRIV:WM/WMCollectionID:{¯E:\x84\x07hF\x94t$\x8aû\x1a\x0fÿ'  PRIV(owner='WM/WMCollectionID', data=b'{\xafE:\x84\x07hF\x94t$\x8a\xfb\x1a\x0f\xff')
'PRIV:WM/WMContentID:6îÝÁqS\x98A»OnG9¤y¦'           PRIV(owner='WM/WMContentID', data=b'6\xee\xdd\xc1qS\x98A\xbbOnG9\xa4y\xa6')
'TALB' (Album/Movie/Show title)                     'Hi, How Are You'
'TBPM' (BPM (beats per minute))                     '118'
'TCOM' (Composer)                                   'Daniel Johnston'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie'
'TDOR' (Original release time)                      '1986'
'TDRC' (Recording time)                             '1986'
'TIT2' (Title/songname/content description)         "I'll Never Marry"
'TKEY' (Initial key)                                '4B'
'TMED' (Media type)                                 'Cassette'
'TPE1' (Lead performer(s)/Soloist(s))               'Daniel Johnston'
'TPE2' (Band/orchestra/accompaniment)               'Daniel Johnston'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Stress Records'
'TRCK' (Track number/Position in set)               '8/15'
'TSO2'                                              'Johnston, Daniel'
'TSOP' (Performer sort order)                       'Johnston, Daniel'
'TXXX:Artists'                                      'Daniel Johnston'
'TXXX:CATALOGNUMBER'                                '[none]'
'TXXX:MusicBrainz Album Artist Id'                  '8a7ca8b0-d23c-4eff-8fe9-6220ba5c9c76'
'TXXX:MusicBrainz Album Id'                         'ba13ed1d-39a3-3416-8b0c-a8cfd38c322c'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '8a7ca8b0-d23c-4eff-8fe9-6220ba5c9c76'
'TXXX:MusicBrainz Release Group Id'                 '22a18813-ca1b-3458-9e9f-a147d8ac5314'
'TXXX:MusicBrainz Release Track Id'                 '344a997f-64eb-3ea3-847e-35cacfff17b5'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['indie', 'lo fi', 'outsider', 'folk', 'singer songwriter']
'TXXX:originalyear'                                 '1986'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.17 dB'
'TXXX:replaygain_track_peak'                        '0.366841'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'9d0bb2ba-3ed5-4fab-975a-c295b82b4ca3')
'USLT::XXX'                                         ("I'll never marry\r\n"
 "I'll never wed\r\n"
 'Nobody wants to kiss you\r\n'
 "When you're dead\r\n"
 'Nobody wants to\r\n'
 'Lie in bed with you\r\n'
 'When your flesh is rotting--')

========================== row from database ==========================
                                              'id'  1497086
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Daniel Johnston/Hi How Are You/08 i_ll never marry.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  20
                                           'genre'  ifs-songwriter-indie
                                        'filesize'  882851
                                           'mtime'  1636400511
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 08 i_ll never marry ifs songwriter indie
                                      'tag_artist'  Daniel Johnston
                                     'tag_release'  Hi, How Are You
                                       'tag_title'  I'll Never Marry
                                             'bpm'  118.0
                                    'search_title'  'i':1 'ill':3 'll':2 'marry':5 'never':4
                                   'search_artist'  'daniel':1 'johnston':2
                                  'search_release'  'are':4 'hi':1,2 'how':3 'you':5
                                     'search_rest'  '00singer':1 'eos':3 'i':4 'ifs':8 'indie':9 'll':5 'marry':7 'never':6 'songwriter':2
                                    'search_combo'  '00singer':13 'are':11C 'daniel':6B 'eos':15 'hi':8C,9C 'how':10C 'i':1A,16 'ifs':20 'ill':3A 'indie':21 'johnston':7B 'll':2A,17 'marry':5A,19 'never':4A,18 'songwriter':14 'you':12C
                                    'tag_tracknum'  8
                                      'num_images'  1
                                             'key'  4B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-1', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'lo fi', 'outsider', 'folk', 'singer songwriter']
                                        'tag_date'  1986
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636400511.3654428  (2021-11-08 20:41:51)
                             'size'  882851