======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '194'
                                          'artist'  'Buckethead'
                                     'text_people'  ''
                                         'release'  'Colma'
                                           'title'  'Colma'
                                           'quals'  ("['Q-HAP-2', 'Q-OLDST-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['guitar', 'guitar virtuoso', 'progressive rock', 'instrumental', 'avant "
 "garde', 'experimental']")
                                     'discogstags'  "['electronic', 'rock', 'abstract', 'downtempo', 'ambient']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  '13'
                                            'date'  '1998'
                                        'comments'  ''
                                           'genre'  'rock-cppex'
                                             'bpm'  '142'
                                             'key'  '4A'
                                        'acoustid'  'b37bab5e-6627-46f3-b0b0-7f50f560ae12'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Colma'
'TBPM' (BPM (beats per minute))                     '142'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex'
'TDOR' (Original release time)                      '1998'
'TDRC' (Recording time)                             '1998-03-24'
'TIT2' (Title/songname/content description)         'Colma'
'TKEY' (Initial key)                                '4A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Buckethead'
'TPE2' (Band/orchestra/accompaniment)               'Buckethead'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'CyberOctave'
'TRCK' (Track number/Position in set)               '13/13'
'TSO2'                                              'Buckethead'
'TSOP' (Performer sort order)                       'Buckethead'
'TXXX:ASIN'                                         'B0000067WV'
'TXXX:Acoustid Id'                                  'b37bab5e-6627-46f3-b0b0-7f50f560ae12'
'TXXX:Artists'                                      'Buckethead'
'TXXX:BARCODE'                                      '724384538026'
'TXXX:CATALOGNUMBER'                                'COCD 45380'
'TXXX:MusicBrainz Album Artist Id'                  'b5179744-f217-4455-9d8b-17b8d4fdeb93'
'TXXX:MusicBrainz Album Id'                         'be0d34d1-5ac3-426d-810f-f8129454232f'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'b5179744-f217-4455-9d8b-17b8d4fdeb93'
'TXXX:MusicBrainz Release Group Id'                 'fa9a2e97-b10b-3629-ab70-68d8b57eef04'
'TXXX:MusicBrainz Release Track Id'                 '721e0a47-0106-4cc0-b674-13e1d798b043'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['electronic', 'rock', 'abstract', 'downtempo', 'ambient']
'TXXX:lastfmtags'                                   ['guitar',
 'guitar virtuoso',
 'progressive rock',
 'instrumental',
 'avant garde',
 'experimental']
'TXXX:originalyear'                                 '1998'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.26 dB'
'TXXX:replaygain_track_peak'                        '0.702108'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'271c3a47-f7d3-4da1-96fd-da77b5321bcd')

========================== row from database ==========================
                                              'id'  1410703
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Buckethead - 1998 - Colma/13 - Colma.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  194
                                           'genre'  rock-cppex
                                        'filesize'  7854181
                                           'mtime'  1636921572
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy 1998 13 rock cppex
                                      'tag_artist'  Buckethead
                                     'tag_release'  Colma
                                       'tag_title'  Colma
                                             'bpm'  142.0
                                    'search_title'  'colma':1
                                   'search_artist'  'buckethead':1
                                  'search_release'  'colma':1
                                     'search_rest'  '1998':2 'classicprogpsy':1 'cppex':4 'rock':3
                                    'search_combo'  '1998':5 'buckethead':2B 'classicprogpsy':4 'colma':1A,3C 'cppex':7 'rock':6
                                    'tag_tracknum'  13
                                      'num_images'  1
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-3', 'q-other-4', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['guitar', 'guitar virtuoso', 'progressive rock', 'instrumental', 'avant garde', 'experimental']
                                        'tag_date'  1998
                                     'discogstags'  ['electronic', 'rock', 'abstract', 'downtempo', 'ambient']

============================== file details ==============================
                                           'mtime'  1636921571.9148123  (2021-11-14 21:26:11)
                             'size'  7854181