======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '170'
                                          'artist'  'The Aggrolites'
                                     'text_people'  ''
                                         'release'  'The Aggrolites'
                                           'title'  'Thunder Fist'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-3', 'Q-UNU-2', 'Q-HHRNBTT-2', 'Q-OLDST-3', "
 "'Q-LOCALNESS-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['rocksteady', 'reggae', 'dirty reggae', 'ska', 'skinhead reggae']"
                                     'discogstags'  "['reggae']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '19'
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'loc-style-reggae or dub or ska or dancehall-dub-modern'
                                             'bpm'  '147'
                                             'key'  '3A'
                                        'acoustid'  '9b903be8-c748-49c5-a039-414981902970'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'MCDI' (Music CD identifier)                        MCDI(data=b'1\x003\x00+\x009\x006\x00+\x004\x00A\x002\x004\x00+\x008\x009\x001\x008\x00+\x00B\x003\x003\x004\x00+\x00E\x005\x005\x000\x00+\x001\x002\x008\x00A\x002\x00+\x001\x005\x00E\x000\x005\x00+\x001\x009\x000\x00C\x001\x00+\x001\x00D\x00B\x008\x004\x00+\x002\x001\x001\x005\x00A\x00+\x002\x004\x00E\x003\x002\x00+\x002\x008\x002\x003\x00C\x00+\x002\x00B\x00A\x002\x000\x00+\x002\x00F\x003\x006\x004\x00+\x003\x003\x006\x009\x000\x00+\x003\x007\x00A\x00C\x009\x00+\x003\x00B\x00D\x00F\x00F\x00+\x004\x000\x001\x000\x00B\x00+\x004\x004\x001\x004\x00A\x00+\x004\x008\x00E\x00B\x004\x00\x00\x00')
'PRIV:AverageLevel:{\x18\x00\x00'                   PRIV(owner='AverageLevel', data=b'{\x18\x00\x00')
'PRIV:PeakValue:¡\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xa1\x7f\x00\x00')
'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/UniqueFileIdentifier:;\x00\x00\x00'        PRIV(owner='WM/UniqueFileIdentifier', data=b';\x00\x00\x00')
'TALB' (Album/Movie/Show title)                     'The Aggrolites'
'TBPM' (BPM (beats per minute))                     '147'
'TCON' (Content type, a.k.a. Genre)                 'loc-style-reggae or dub or ska or dancehall-dub-modern'
'TDOR' (Original release time)                      '2006'
'TDRC' (Recording time)                             '2006-05-09'
'TIT2' (Title/songname/content description)         'Thunder Fist'
'TKEY' (Initial key)                                '3A'
'TLEN' (Length)                                     '171040'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'The Aggrolites'
'TPE2' (Band/orchestra/accompaniment)               'The Aggrolites'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Hellcat Records'
'TRCK' (Track number/Position in set)               '4/19'
'TSO2'                                              'Aggrolites, The'
'TSOP' (Performer sort order)                       'Aggrolites, The'
'TSRC' (ISRC (international standard recording code))  'USHEL0604104'
'TXXX:ASIN'                                         'B000F3AJ9Y'
'TXXX:Acoustid Id'                                  '9b903be8-c748-49c5-a039-414981902970'
'TXXX:Artists'                                      'The Aggrolites'
'TXXX:BARCODE'                                      '045778048427'
'TXXX:CATALOGNUMBER'                                '80484-2'
'TXXX:MusicBrainz Album Artist Id'                  'ac241ded-3430-4f42-8451-f78667cc2f52'
'TXXX:MusicBrainz Album Id'                         '51e22728-2995-4258-998a-f1163f94b8fc'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'ac241ded-3430-4f42-8451-f78667cc2f52'
'TXXX:MusicBrainz Release Group Id'                 'cf3f8d64-b9cf-3e8b-aaf5-209b053fc45e'
'TXXX:MusicBrainz Release Track Id'                 'e4fae47e-ca4d-355e-b9e3-a932f2bd58a4'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  'reggae'
'TXXX:lastfmtags'                                   ['rocksteady', 'reggae', 'dirty reggae', 'ska', 'skinhead reggae']
'TXXX:originalyear'                                 '2006'
'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'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.77 dB'
'TXXX:replaygain_track_peak'                        '0.427957'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'f44da2df-ec98-45ed-aeae-f948627dfe97')

========================== row from database ==========================
                                              'id'  1367278
                                            'path'  /data/Music/Bulk/00localcharacter/00reggae-dub/Aggrolites, the/The Aggrolites (2006)/04 Thunder first.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  170
                                           'genre'  loc-style-reggae or dub or ska or dancehall-dub-modern
                                        'filesize'  6954549
                                           'mtime'  1620520924
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00reggae dub Aggrolites, the (2006) 04 first loc style reggae or dub or ska or dancehall dub modern
                                      'tag_artist'  The Aggrolites
                                     'tag_release'  The Aggrolites
                                       'tag_title'  Thunder Fist
                                             'bpm'  147.0
                                    'search_title'  'fist':2 'thunder':1
                                   'search_artist'  'aggrolites':2 'the':1
                                  'search_release'  'aggrolites':2 'the':1
                                     'search_rest'  '00reggae':1 '2006':6,7 'aggrolites':3,4 'dancehall':14 'dub':2 'first':8 'loc':9 'modern':15 'or':12 'reggae':11 'ska':13 'style':10 'the':5
                                    'search_combo'  '00reggae':7 '2006':12,13 'aggrolites':4B,6C,9,10 'dancehall':20 'dub':8 'first':14 'fist':2A 'loc':15 'modern':21 'or':18 'reggae':17 'ska':19 'style':16 'the':3B,5C,11 'thunder':1A
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-1', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-2', 'q-syn-3', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['rocksteady', 'reggae', 'dirty reggae', 'ska', 'skinhead reggae']
                                        'tag_date'  2006
                                     'discogstags'  ['reggae']

============================== file details ==============================
                                           'mtime'  1620520923.6977484  (2021-05-09 02:42:03)
                             'size'  6954549