======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '678'
                                          'artist'  'Franz Liszt'
                                     'text_people'  ''
                                         'release'  'Complete Liszt Piano v01CD1 Hyperion CDA66201 DDD'
                                           'title'  'Waltzes-Mephisto Waltz No.1,S514[Der Tanz in der Dorfschenke]'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'Q-PLAY-3', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-2', "
 "'Q-PIANO-4', 'q-chart-3', 'q-drums-1', 'q-other-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['composers', 'piano', 'hungarian', 'romantic', 'classical']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '14'
                                      'tracktotal'  ''
                                            'date'  '1986'
                                        'comments'  ''
                                           'genre'  'prerock-classical or classical instruments'
                                             'bpm'  '136.367'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Complete Liszt Piano v01CD1 Hyperion CDA66201 DDD'
'TBPM' (BPM (beats per minute))                     '136.367'
'TCON' (Content type, a.k.a. Genre)                 'prerock-classical or classical instruments'
'TDRC' (Recording time)                             '1986'
'TIT2' (Title/songname/content description)         'Waltzes-Mephisto Waltz No.1,S514[Der Tanz in der Dorfschenke]'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'Franz Liszt'
'TRCK' (Track number/Position in set)               '14'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '4'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['composers', 'piano', 'hungarian', 'romantic', 'classical']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+2.56 dB'
'TXXX:replaygain_track_peak'                        '0.715940'

========================== row from database ==========================
                                              'id'  201077
                                            'path'  /data/Music/Bulk/00instruments-classical/Unsorted/Liszt, Franz__Vol 01 - The Waltzes (Leslie Howard)__cifs7c4f.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  678
                                           'genre'  prerock-classical or classical instruments
                                        'filesize'  13563121
                                           'mtime'  1637329808
                                   'redo_metaread'  0
                                        'rest_str'   00instruments classical Unsorted Liszt, Franz__Vol The (Leslie Howard)__cifs7c4f prerock classical classical instruments
                                      'tag_artist'  Franz Liszt
                                     'tag_release'  Complete Liszt Piano v01CD1 Hyperion CDA66201 DDD
                                       'tag_title'  Waltzes-Mephisto Waltz No.1,S514[Der Tanz in der Dorfschenke]
                                             'bpm'  136.367
                                    'search_title'  '1':6 'der':8,13 'dorfschenke':14,15 'in':12 'mephisto':2 'no':5 'no1':9 's514':7 's514der':10 'tanz':11 'waltz':4 'waltzes':1 'waltzesmephisto':3
                                   'search_artist'  'franz':1 'liszt':2
                                  'search_release'  'cda66201':6 'complete':1 'ddd':7 'hyperion':5 'liszt':2 'piano':3 'v01cd1':4
                                     'search_rest'  '00instruments':1 'cifs7c4f':12,14 'classical':2 'franz':6 'howard':11,13 'instruments':16 'leslie':9,10 'liszt':4,5 'prerock':15 'the':8 'unsorted':3 'vol':7
                                    'search_combo'  '00instruments':25 '1':6A 'cda66201':23C 'cifs7c4f':36,38 'classical':26 'complete':18C 'ddd':24C 'der':8A,13A 'dorfschenke':14A,15A 'franz':16B,30 'howard':35,37 'hyperion':22C 'in':12A 'instruments':40 'leslie':33,34 'liszt':17B,19C,28,29 'mephisto':2A 'no':5A 'no1':9A 'piano':20C 'prerock':39 's514':7A 's514der':10A 'tanz':11A 'the':32 'unsorted':27 'v01cd1':21C 'vol':31 'waltz':4A 'waltzes':1A 'waltzesmephisto':3A
                                    'tag_tracknum'  14
                                      'num_images'  0
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-4', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-3', 'q-other-1', 'Q-HAP-2', 'Q-PLAY-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['composers', 'piano', 'hungarian', 'romantic', 'classical']
                                        'tag_date'  1986
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1637329808.3953679  (2021-11-19 14:50:08)
                             'size'  13563121