======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '142'
                                          'artist'  'Penguin Cafe Orchestra'
                                     'text_people'  ''
                                         'release'  'Music From the Penguin Cafe'
                                           'title'  'Zopf: Surface Tension'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-3', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['instrumental', 'contemporary classical', 'new age', 'classical', 'ambient']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '1976'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-soft-salon or easy'
                                             'bpm'  '139.658'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'POPM:Windows Media Player 9 Series'                POPM(email='Windows Media Player 9 Series', rating=128, count=0)
'TALB' (Album/Movie/Show title)                     'Music From the Penguin Cafe'
'TBPM' (BPM (beats per minute))                     '139.658'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-soft-salon or easy'
'TDRC' (Recording time)                             '1976'
'TIT2' (Title/songname/content description)         'Zopf: Surface Tension'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Penguin Cafe Orchestra'
'TRCK' (Track number/Position in set)               '4'
'TXXX:FMPS_Rating'                                  '0.6'
'TXXX:MP3GAIN_MINMAX'                               '134,170'
'TXXX:MusicMagic Data'                              'AgEAMm2exT7fl81giCzVTFXcgAGQ1IACGxSbADpVgWDN2KSTgAHt+qjLgRWGhIABgvKAAcsnRnIGvaaWgAG0DQhi+hiAAbUVgAKAAaLlt0G3P4TtyX9BW5rgh8GADfrPmYYvB4EYwm6UnoDP856uAYY6uOyCEoTagAG2QPYi44WogIABvpAAkvi+mhWlb4ACgAE='
'TXXX:MusicMagic Fingerprint'                       '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'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['instrumental', 'contemporary classical', 'new age', 'classical', 'ambient']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.57 dB'
'TXXX:replaygain_track_peak'                        '0.551552'

========================== row from database ==========================
                                              'id'  677478
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Penguin Cafe Orchestra/Music From The Penguin Cafe - 04 - The Penguin Cafe Orchestra - Zopf_ Surface Tension.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  142
                                           'genre'  prerock-jb-jazz-soft-salon or easy
                                        'filesize'  5727834
                                           'mtime'  1620533578
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country The 04 The Zopf_ prerock jb jazz soft salon or easy
                                      'tag_artist'  Penguin Cafe Orchestra
                                     'tag_release'  Music From the Penguin Cafe
                                       'tag_title'  Zopf: Surface Tension
                                             'bpm'  139.658
                                    'search_title'  'surface':3 'tension':4 'zopf':1,2
                                   'search_artist'  'cafe':2 'orchestra':3 'penguin':1
                                  'search_release'  'cafe':5 'from':2 'music':1 'penguin':4 'the':3
                                     'search_rest'  'country':4 'easy':12 'exotica':2 'jazz':1 'jb':8 'oldies':3 'or':11 'prerock':7 'salon':10 'soft':9 'the':5 'zopf':6
                                    'search_combo'  'cafe':6B,12C 'country':16 'easy':24 'exotica':14 'from':9C 'jazz':13 'jb':20 'music':8C 'oldies':15 'or':23 'orchestra':7B 'penguin':5B,11C 'prerock':19 'salon':22 'soft':21 'surface':3A 'tension':4A 'the':10C,17 'zopf':1A,2A,18
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['instrumental', 'contemporary classical', 'new age', 'classical', 'ambient']
                                        'tag_date'  1976
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620533577.931033  (2021-05-09 06:12:57)
                             'size'  5727834