======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '221'
                                          'artist'  'Prince'
                                     'text_people'  'C Moon/Prince'
                                         'release'  'The Hits/The B-Sides Disc 1'
                                           'title'  'Pop Life'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-4', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['80s', 'rock', 'pop', 'funk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '02'
                                      'tracktotal'  ''
                                            'date'  '1985'
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '100.755'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'MCDI' (Music CD identifier)                        MCDI(data=b'1\x002\x00+\x00B\x006\x00+\x004\x003\x009\x009\x00+\x008\x004\x00A\x00A\x00+\x00B\x00A\x005\x006\x00+\x00F\x006\x007\x004\x00+\x001\x003\x009\x008\x009\x00+\x001\x007\x00B\x000\x008\x00+\x001\x00C\x004\x001\x00E\x00+\x002\x001\x005\x00F\x00C\x00+\x002\x005\x005\x00C\x008\x00+\x002\x009\x006\x007\x003\x00+\x002\x00E\x00D\x00C\x00E\x00+\x003\x004\x000\x004\x00B\x00+\x003\x00A\x00E\x005\x003\x00+\x004\x001\x001\x00E\x000\x00+\x004\x005\x003\x005\x00D\x00+\x004\x008\x00E\x002\x009\x00+\x004\x00D\x00A\x005\x00D\x00+\x005\x003\x004\x00F\x00A\x00\x00\x00')
'PRIV:AverageLevel:{\x17\x00\x00'                   PRIV(owner='AverageLevel', data=b'{\x17\x00\x00')
'PRIV:PeakValue:¡z\x00\x00'                         PRIV(owner='PeakValue', data=b'\xa1z\x00\x00')
'PRIV:WM/MediaClassPrimaryID:¼}`Ñ#ãâK\x86¡H¤*(D\x1e'  PRIV(owner='WM/MediaClassPrimaryID', data=b'\xbc}`\xd1#\xe3\xe2K\x86\xa1H\xa4*(D\x1e')
'PRIV:WM/MediaClassSecondaryID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/MediaClassSecondaryID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
'PRIV:WM/Provider:A\x00M\x00G\x00\x00\x00'          PRIV(owner='WM/Provider', data=b'A\x00M\x00G\x00\x00\x00')
'PRIV:WM/UniqueFileIdentifier:A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x001\x009\x000\x006\x003\x003\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x005\x001\x008\x002\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x002\x007\x004\x008\x002\x005\x006\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x001\x009\x000\x006\x003\x003\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x005\x001\x008\x002\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x002\x007\x004\x008\x002\x005\x006\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:\x83èF=\x11®dH\x8d°²\x0f\x99y\x17¸'  PRIV(owner='WM/WMCollectionGroupID', data=b'\x83\xe8F=\x11\xaedH\x8d\xb0\xb2\x0f\x99y\x17\xb8')
'PRIV:WM/WMCollectionID:\x83èF=\x11®dH\x8d°²\x0f\x99y\x17¸'  PRIV(owner='WM/WMCollectionID', data=b'\x83\xe8F=\x11\xaedH\x8d\xb0\xb2\x0f\x99y\x17\xb8')
"PRIV:WM/WMContentID:·£lgü»AE¨þõ>!'äX"              PRIV(owner='WM/WMContentID', data=b"\xb7\xa3lg\xfc\xbbAE\xa8\xfe\xf5>!'\xe4X")
'TALB' (Album/Movie/Show title)                     'The Hits/The B-Sides Disc 1'
'TBPM' (BPM (beats per minute))                     '100.755'
'TCOM' (Composer)                                   'C Moon/Prince'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TDRC' (Recording time)                             '1985'
'TIT2' (Title/songname/content description)         'Pop Life'
'TKEY' (Initial key)                                '11A'
'TLEN' (Length)                                     '222093'
'TPE1' (Lead performer(s)/Soloist(s))               'Prince'
'TPE2' (Band/orchestra/accompaniment)               'Prince'
'TPUB' (Publisher)                                  'Paisley Park'
'TRCK' (Track number/Position in set)               '02'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['80s', 'rock', 'pop', 'funk']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.24 dB'
'TXXX:replaygain_track_peak'                        '0.677522'

========================== row from database ==========================
                                              'id'  1284307
                                            'path'  /data/Music/Bulk/00poprockelectronic/1985 complete/226-A Prince - Pop Life (single version).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  221
                                           'genre'  funk or soul
                                        'filesize'  8880440
                                           'mtime'  1628357917
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 1985 complete 226 A (single version) funk or soul
                                      'tag_artist'  Prince
                                     'tag_release'  The Hits/The B-Sides Disc 1
                                       'tag_title'  Pop Life
                                             'bpm'  100.755
                                    'search_title'  'life':2 'pop':1
                                   'search_artist'  'prince':1
                                  'search_release'  '1':9 'b':5 'bsides':7 'disc':8 'hits':2 'hitsthe':4 'sides':6 'the':1,3
                                     'search_rest'  '00poprockelectronic':1 '1985':2 '226':4 'a':5 'complete':3 'funk':10 'or':11 'single':6,7 'soul':12 'version':8,9
                                    'search_combo'  '00poprockelectronic':13 '1':12C '1985':14 '226':16 'a':17 'b':8C 'bsides':10C 'complete':15 'disc':11C 'funk':22 'hits':5C 'hitsthe':7C 'life':2A 'or':23 'pop':1A 'prince':3B 'sides':9C 'single':18,19 'soul':24 'the':4C,6C 'version':20,21
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-4', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-3']
                                      'lastfmtags'  ['80s', 'rock', 'pop', 'funk']
                                        'tag_date'  1985
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1628357917.348787  (2021-08-07 19:38:37)
                             'size'  8880440