======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '130'
                                          'artist'  'Vladimir Ussachevsky'
                                     'text_people'  ''
                                         'release'  'Pioneers of Electronic Music'
                                           'title'  'Two Sketches for a Computer Piece, Sketch 2 (1970)'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-2', 'q-syn-3', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['contemporary classical', 'electronic', 'earwaves', 'avant garde', "
 "'experimental']")
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  '14'
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'electronic-experimental-early;mi-earlysynth'
                                             'bpm'  '144.2'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Pioneers of Electronic Music'
'TBPM' (BPM (beats per minute))                     '144.2'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-experimental-early', 'mi-earlysynth']
'TDRC' (Recording time)                             '2006'
'TENC' (Encoded by)                                 'Dualtrack'
'TIT2' (Title/songname/content description)         'Two Sketches for a Computer Piece, Sketch 2 (1970)'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Vladimir Ussachevsky'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '12/14'
'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:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['contemporary classical',
 'electronic',
 'earwaves',
 'avant garde',
 'experimental']
'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'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.92 dB'
'TXXX:replaygain_track_peak'                        '0.515242'
'WXXX:'                                             WXXX(encoding=<Encoding.LATIN1: 0>, desc='', url='http://dualtrack.blogspot.com')

========================== row from database ==========================
                                              'id'  764253
                                            'path'  /data/Music/Bulk/00instruments-classical/va - pioneers of electronic music (1991, 2006 re)/12 - Vladimir Ussachevsky - Two Sketches for a Computer Piece, Sketch 2 (1970).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  130
                                           'genre'  electronic-experimental-early;mi-earlysynth
                                        'filesize'  5773886
                                           'mtime'  1637329143
                                   'redo_metaread'  0
                                        'rest_str'   00instruments classical va pioneers electronic music (1991, 2006 re) 12 electronic experimental early;mi earlysynth
                                      'tag_artist'  Vladimir Ussachevsky
                                     'tag_release'  Pioneers of Electronic Music
                                       'tag_title'  Two Sketches for a Computer Piece, Sketch 2 (1970)
                                             'bpm'  144.2
                                    'search_title'  '1970':10,11 '2':9 'a':4 'computer':5 'for':3 'piece':6,7 'sketch':8 'sketches':2 'two':1
                                   'search_artist'  'ussachevsky':2 'vladimir':1
                                  'search_release'  'electronic':3 'music':4 'of':2 'pioneers':1
                                     'search_rest'  '00instruments':1 '1991':7,8 '2006':9 'classical':2 'early':13,15 'earlysynth':17 'electronic':5 'experimental':12 'mi':14,16 'music':6 'pioneers':4 're':10,11 'va':3
                                    'search_combo'  '00instruments':18 '1970':10A,11A '1991':24,25 '2':9A '2006':26 'a':4A 'classical':19 'computer':5A 'early':30,32 'earlysynth':34 'electronic':16C,22 'experimental':29 'for':3A 'mi':31,33 'music':17C,23 'of':15C 'piece':6A,7A 'pioneers':14C,21 're':27,28 'sketch':8A 'sketches':2A 'two':1A 'ussachevsky':13B 'va':20 'vladimir':12B
                                    'tag_tracknum'  12
                                      'num_images'  1
                                             'key'  7A
                                           '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-3', 'q-chart-2', 'q-other-4', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['contemporary classical', 'electronic', 'earwaves', 'avant garde', 'experimental']
                                        'tag_date'  2006
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1637329142.6734602  (2021-11-19 14:39:02)
                             'size'  5773886