======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '168'
                                          'artist'  'G3'
                                     'text_people'  ''
                                         'release'  "G3: Rockin' in the Free World"
                                           'title'  'Blitzkrieg'
                                           '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-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['guitar', 'instrumental', 'guitar virtuoso', 'instrumental rock', 'rock']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  '13'
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'rock-instrumental'
                                             'bpm'  '143'
                                             'key'  '4B'
                                        'acoustid'  '83008817-766e-486d-bc29-37fe820acb0a'
rest: ''

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

'TALB' (Album/Movie/Show title)                     "G3: Rockin' in the Free World"
'TBPM' (BPM (beats per minute))                     '143'
'TCON' (Content type, a.k.a. Genre)                 'rock-instrumental'
'TDOR' (Original release time)                      '2004'
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         'Blitzkrieg'
'TKEY' (Initial key)                                '4B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Yngwie J. Malmsteen'
'TPE2' (Band/orchestra/accompaniment)               'G3'
'TPOS' (Part of a set)                              '1/2'
'TPUB' (Publisher)                                  'Epic'
'TRCK' (Track number/Position in set)               '9/13'
'TSO2'                                              'G3'
'TSOP' (Performer sort order)                       'Malmsteen, Yngwie J.'
'TXXX:Acoustid Id'                                  '83008817-766e-486d-bc29-37fe820acb0a'
'TXXX:Artists'                                      'Yngwie J. Malmsteen'
'TXXX:BARCODE'                                      '827969085622'
'TXXX:CATALOGNUMBER'                                'E2K 90856'
'TXXX:MusicBrainz Album Artist Id'                  'ec676b1e-9586-479d-926b-25face38e87f'
'TXXX:MusicBrainz Album Id'                         '384ace6e-ff72-4df4-ba7a-463c78b47f44'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album/live'
'TXXX:MusicBrainz Artist Id'                        '8fa5d80d-37e8-4133-9d5c-6bad446c63f0'
'TXXX:MusicBrainz Release Group Id'                 '9ec89d18-91e9-3166-ac70-3a3740d5be44'
'TXXX:MusicBrainz Release Track Id'                 'a7d56e3c-cd6b-44fa-9102-dc26b9416522'
'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'                                  'electronic'
'TXXX:lastfmtags'                                   ['guitar', 'instrumental', 'guitar virtuoso', 'instrumental rock', 'rock']
'TXXX:originalyear'                                 '2004'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.47 dB'
'TXXX:replaygain_track_peak'                        '0.372061'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'845310b3-faf6-44ad-a193-ddd1db29c193')

========================== row from database ==========================
                                              'id'  1487468
                                            'path'  /data/Music/Bulk/00poprockelectronic/Joe Satriani/G3/09 - Yngwie Malmsteen - Blitzkrieg.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  168
                                           'genre'  rock-instrumental
                                        'filesize'  6748353
                                           'mtime'  1647352860
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Joe Satriani 09 Yngwie Malmsteen rock instrumental
                                      'tag_artist'  G3
                                     'tag_release'  G3: Rockin' in the Free World
                                       'tag_title'  Blitzkrieg
                                             'bpm'  143.0
                                    'search_title'  'blitzkrieg':1
                                   'search_artist'  'g3':1
                                  'search_release'  'free':7 'g3':1,2 'in':5 'rockin':3,4 'the':6 'world':8
                                     'search_rest'  '00poprockelectronic':1 'instrumental':7 'joe':2 'malmsteen':5 'rock':6 'satriani':3 'yngwie':4
                                    'search_combo'  '00poprockelectronic':11 'blitzkrieg':1A 'free':9C 'g3':2B,3C,4C 'in':7C 'instrumental':17 'joe':12 'malmsteen':15 'rock':16 'rockin':5C,6C 'satriani':13 'the':8C 'world':10C 'yngwie':14
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  4B
                                           '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-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', 'q-mixbeat-1']
                                      'lastfmtags'  ['guitar', 'instrumental', 'guitar virtuoso', 'instrumental rock', 'rock']
                                        'tag_date'  2004
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1647352859.8168738  (2022-03-15 15:00:59)
                             'size'  6748353