======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '391'
                                          'artist'  'Stan Getz'
                                     'text_people'  'Gene Lees/Lasse Färnlöf'
                                         'release'  'radio jazz 13'
                                           'title'  "Grandfather's Waltz"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', 'Q-JZFKS-2', "
 "'Q-OLDST-2', 'Q-SYN-1', 'Q-BUSY-3', 'Q-GRIT-1', 'Q-PLAY-2', 'q-bass-3', "
 "'Q-CHART-2', 'q-drums-2', 'q-other-4', 'q-piano-2', 'q-vocals-1', "
 "'Q-MIXBEAT-1']")
                                      'lastfmtags'  "['bossa nova', 'jazz', 'saxophone', 'latin', 'latin jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '06'
                                      'tracktotal'  ''
                                            'date'  '1990'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '109.8'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
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'PRIV:WM/WMCollectionID:æïl²\x9e\x90`LªQ}\x07Ûk×)'  PRIV(owner='WM/WMCollectionID', data=b'\xe6\xefl\xb2\x9e\x90`L\xaaQ}\x07\xdbk\xd7)')
'PRIV:WM/WMContentID:G+²`\x9cÒ°E\x8eÝë\x89TîG\x0f'  PRIV(owner='WM/WMContentID', data=b'G+\xb2`\x9c\xd2\xb0E\x8e\xdd\xeb\x89T\xeeG\x0f')
'TALB' (Album/Movie/Show title)                     'radio jazz 13'
'TBPM' (BPM (beats per minute))                     '109.8'
'TCOM' (Composer)                                   'Gene Lees/Lasse Färnlöf'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDRC' (Recording time)                             '1990'
'TIT2' (Title/songname/content description)         "Grandfather's Waltz"
'TKEY' (Initial key)                                '8B'
'TPE1' (Lead performer(s)/Soloist(s))               'Stan Getz'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Polygram Records'
'TRCK' (Track number/Position in set)               '06'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '1'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-MIXBEAT'                                    '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['bossa nova', 'jazz', 'saxophone', 'latin', 'latin jazz']
'TXXX:q-bass'                                       '3'
'TXXX:q-drums'                                      '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.24 dB'
'TXXX:replaygain_track_peak'                        '0.877952'
'WCOM:http://www.amazon.com/exec/obidos/ASIN/B00000476E/softpointer-20?dev-t=D17H5OIRRQ5XUC%26camp=2025%26link_code=xm2'  WCOM(url='http://www.amazon.com/exec/obidos/ASIN/B00000476E/softpointer-20?dev-t=D17H5OIRRQ5XUC%26camp=2025%26link_code=xm2')

========================== row from database ==========================
                                              'id'  1507207
                                            'path'  /data/Music/Bulk/00poprockelectronic/radio jazz 13/Stan Getz & Bill Evans - grandfather_s waltz.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  391
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  15707618
                                           'mtime'  1620541556
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic & Bill Evans grandfather_s waltz prerock jb unsorted
                                      'tag_artist'  Stan Getz
                                     'tag_release'  radio jazz 13
                                       'tag_title'  Grandfather's Waltz
                                             'bpm'  109.8
                                    'search_title'  'grandfather':1 'grandfathers':3 's':2 'waltz':4
                                   'search_artist'  'getz':2 'stan':1
                                  'search_release'  'jazz':2 'radio':1
                                     'search_rest'  '00poprockelectronic':1 'bill':2 'evans':3 'grandfather':4 'jb':8 'prerock':7 's':5 'unsorted':9 'waltz':6
                                    'search_combo'  '00poprockelectronic':9 'bill':10 'evans':11 'getz':6B 'grandfather':1A,12 'grandfathers':3A 'jazz':8C 'jb':16 'prerock':15 'radio':7C 's':2A,13 'stan':5B 'unsorted':17 'waltz':4A,14
                                    'tag_tracknum'  6
                                      'num_images'  1
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-3', 'q-piano-2', 'Q-MIXBEAT-1', 'Q-OLDST-2', 'Q-GRIT-1', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-CHART-2', 'q-drums-2', 'Q-SYN-1', 'q-other-4', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-3']
                                      'lastfmtags'  ['bossa nova', 'jazz', 'saxophone', 'latin', 'latin jazz']
                                        'tag_date'  1990
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620541556.23448  (2021-05-09 08:25:56)
                             'size'  15707618