======================== unified (from filesystem) ========================
                                         'bitrate'  '172.377'
                                        'duration'  '194'
                                          'artist'  'Joe Satriani'
                                     'text_people'  ''
                                         'release'  'Flying in a Blue Dream'
                                           'title'  'Back to Shalla-Bal'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-OLDST-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['instrumental', 'guitar', 'guitar virtuoso', 'instrumental rock', 'rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  '18'
                                            'date'  '1989'
                                        'comments'  ''
                                           'genre'  'rock-instrumental'
                                             'bpm'  '82'
                                             'key'  '3A'
                                        'acoustid'  '9d129250-8d3d-4bf1-b49c-6cfcf3aad220'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Flying in a Blue Dream'
'TBPM' (BPM (beats per minute))                     '82'
'TCON' (Content type, a.k.a. Genre)                 'rock-instrumental'
'TDOR' (Original release time)                      '1989'
'TDRC' (Recording time)                             '1989'
'TIT2' (Title/songname/content description)         'Back to Shalla-Bal'
'TKEY' (Initial key)                                '3A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Joe Satriani'
'TPE2' (Band/orchestra/accompaniment)               'Joe Satriani'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'N.E.W Musidisc/Food for Thought'
'TRCK' (Track number/Position in set)               '12/18'
'TSO2'                                              'Satriani, Joe'
'TSOP' (Performer sort order)                       'Satriani, Joe'
'TSRC' (ISRC (international standard recording code))  'USSM18900134'
'TXXX:Acoustid Id'                                  '9d129250-8d3d-4bf1-b49c-6cfcf3aad220'
'TXXX:Artists'                                      'Joe Satriani'
'TXXX:BARCODE'                                      '3229261046726'
'TXXX:CATALOGNUMBER'                                '104672/[none]'
'TXXX:MusicBrainz Album Artist Id'                  '29762c82-bb92-4acd-b1fb-09cc4da250d2'
'TXXX:MusicBrainz Album Id'                         'd5070978-2b25-422d-a23c-be89686a9c6c'
'TXXX:MusicBrainz Album Release Country'            'FR'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '29762c82-bb92-4acd-b1fb-09cc4da250d2'
'TXXX:MusicBrainz Release Group Id'                 'e19b2146-1ea9-31f3-8a51-65e2c7fbe29b'
'TXXX:MusicBrainz Release Track Id'                 '76586125-b9a0-4212-acf7-d5df51f77e1f'
'TXXX:Q-HAP'                                        '3'
'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'                                  'rock'
'TXXX:lastfmtags'                                   ['instrumental', 'guitar', 'guitar virtuoso', 'instrumental rock', 'rock']
'TXXX:originalyear'                                 '1989'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'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'                        '-1.02 dB'
'TXXX:replaygain_track_peak'                        '0.697224'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'8cf7da3e-9d30-483a-bc49-99fe28e10f17')

========================== row from database ==========================
                                              'id'  1487467
                                            'path'  /data/Music/Bulk/00poprockelectronic/Joe Satriani/Flying in a Blue Dream/12 - Back to Shalla-Bal.mp3
                                         'working'  None
                                         'bitrate'  172
                                    'duration_sec'  194
                                           'genre'  rock-instrumental
                                        'filesize'  4245576
                                           'mtime'  1636917952
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 12 rock instrumental
                                      'tag_artist'  Joe Satriani
                                     'tag_release'  Flying in a Blue Dream
                                       'tag_title'  Back to Shalla-Bal
                                             'bpm'  82.0
                                    'search_title'  'back':1 'bal':4 'shalla':3 'shallabal':5 'to':2
                                   'search_artist'  'joe':1 'satriani':2
                                  'search_release'  'a':3 'blue':4 'dream':5 'flying':1 'in':2
                                     'search_rest'  '00poprockelectronic':1 'instrumental':3 'rock':2
                                    'search_combo'  '00poprockelectronic':13 'a':10C 'back':1A 'bal':4A 'blue':11C 'dream':12C 'flying':8C 'in':9C 'instrumental':15 'joe':6B 'rock':14 'satriani':7B 'shalla':3A 'shallabal':5A 'to':2A
                                    'tag_tracknum'  12
                                      'num_images'  1
                                             'key'  3A
                                           '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-3', 'q-syn-2', 'q-chart-3', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['instrumental', 'guitar', 'guitar virtuoso', 'instrumental rock', 'rock']
                                        'tag_date'  1989
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1636917952.3952143  (2021-11-14 20:25:52)
                             'size'  4245576