======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '272'
                                          'artist'  'Gonzales'
                                     'text_people'  ''
                                         'release'  'Solo Piano'
                                           'title'  'C.M. Blues'
                                           '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-1', "
 "'Q-PIANO-4', 'q-chart-3', 'q-drums-1', 'q-other-2', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['lounge', 'indie', 'piano', 'electronic', 'canadian']"
                                     'discogstags'  "['jazz', 'classical', 'modern classical', 'contemporary jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '15'
                                      'tracktotal'  ''
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'prerock-classical or classical instruments'
                                             'bpm'  '130.0'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'PRIV:AverageLevel:\x8e\t\x00\x00'                  PRIV(owner='AverageLevel', data=b'\x8e\t\x00\x00')
'PRIV:PeakValue:ÿ\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xff\x7f\x00\x00')
'TALB' (Album/Movie/Show title)                     'Solo Piano'
'TBPM' (BPM (beats per minute))                     '130.0'
'TCON' (Content type, a.k.a. Genre)                 'prerock-classical or classical instruments'
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         'C.M. Blues'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Gonzales'
'TPE2' (Band/orchestra/accompaniment)               'Gonzales'
'TPUB' (Publisher)                                  'No Format'
'TRCK' (Track number/Position in set)               '15'
'TXXX:COMPILATION'                                  '0'
'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:discogstags'                                  ['jazz', 'classical', 'modern classical', 'contemporary jazz']
'TXXX:iTunNORM'                                     ('00000141 0000010B 00003A41 00002FB2 0003421C 00026F28 00008000 00008000 '
 '00027122 00034302')
'TXXX:iTunes_CDDB_1'                                'E8099C10+184677+16+150+9341+23468+38681+45713+55127+69667+80960+90333+101886+119160+131949+141367+147717+154494+174949'
'TXXX:iTunes_CDDB_TrackNumber'                      '15'
'TXXX:lastfmtags'                                   ['lounge', 'indie', 'piano', 'electronic', 'canadian']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+2.34 dB'
'TXXX:replaygain_track_peak'                        '0.841898'
'WCOM:http://www.amazon.co.uk/exec/obidos/ASIN/B0002UY7X4/softpointer-20?dev-t=D17H5OIRRQ5XUC%26camp=2025%26link_code=xm2'  WCOM(url='http://www.amazon.co.uk/exec/obidos/ASIN/B0002UY7X4/softpointer-20?dev-t=D17H5OIRRQ5XUC%26camp=2025%26link_code=xm2')

========================== row from database ==========================
                                              'id'  1214078
                                            'path'  /data/Music/Bulk/00instruments-classical/Gonzales/Solo Piano/15 - c.m blues.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  272
                                           'genre'  prerock-classical or classical instruments
                                        'filesize'  6586525
                                           'mtime'  1637329794
                                   'redo_metaread'  0
                                        'rest_str'   00instruments classical 15 c.m blues prerock classical or classical instruments
                                      'tag_artist'  Gonzales
                                     'tag_release'  Solo Piano
                                       'tag_title'  C.M. Blues
                                             'bpm'  130.0
                                    'search_title'  'blues':4 'c':1 'cm':3 'm':2
                                   'search_artist'  'gonzales':1
                                  'search_release'  'piano':2 'solo':1
                                     'search_rest'  '00instruments':1 'blues':6 'c':3 'classical':2 'cm':5 'instruments':9 'm':4 'or':8 'prerock':7
                                    'search_combo'  '00instruments':8 'blues':4A,13 'c':1A,10 'classical':9 'cm':3A,12 'gonzales':5B 'instruments':16 'm':2A,11 'or':15 'piano':7C 'prerock':14 'solo':6C
                                    'tag_tracknum'  15
                                      'num_images'  1
                                             'key'  6A
                                           '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-2', 'Q-HAP-2', 'Q-PLAY-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['lounge', 'indie', 'piano', 'electronic', 'canadian']
                                        'tag_date'  2004
                                     'discogstags'  ['jazz', 'classical', 'modern classical', 'contemporary jazz']

============================== file details ==============================
                                           'mtime'  1637329794.3378348  (2021-11-19 14:49:54)
                             'size'  6586525