======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '410'
                                          'artist'  'Winehouse, Amy'
                                     'text_people'  'Amy Winehouse/Felix Howard'
                                         'release'  'Frank'
                                           'title'  'You Sent Me Flying'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', 'Q-OLDST-2', "
 "'Q-JZFKS-2', 'q-syn-2', 'Q-PLAY-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', "
 "'Q-PIANO-2', 'q-chart-4', 'q-drums-3', 'q-other-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['soul', 'jazz', 'female vocalists', 'british', 'amy winehouse']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '100.1'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'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 \x006\x007\x001\x009\x008\x006\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x006\x001\x002\x003\x007\x001\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x007\x001\x005\x003\x001\x003\x003\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x006\x007\x001\x009\x008\x006\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x006\x001\x002\x003\x007\x001\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x007\x001\x005\x003\x001\x003\x003\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:Ø_r]NY²A¦/ÒóáÏ\x90<'   PRIV(owner='WM/WMCollectionGroupID', data=b'\xd8_r]NY\xb2A\xa6/\xd2\xf3\xe1\xcf\x90<')
'PRIV:WM/WMCollectionID:Ø_r]NY²A¦/ÒóáÏ\x90<'        PRIV(owner='WM/WMCollectionID', data=b'\xd8_r]NY\xb2A\xa6/\xd2\xf3\xe1\xcf\x90<')
'PRIV:WM/WMContentID:\x02jÄ×CC\rO\x9fyÁØl\x1f\x03ß'  PRIV(owner='WM/WMContentID', data=b'\x02j\xc4\xd7CC\rO\x9fy\xc1\xd8l\x1f\x03\xdf')
'TALB' (Album/Movie/Show title)                     'Frank'
'TBPM' (BPM (beats per minute))                     '100.1'
'TCOM' (Composer)                                   'Amy Winehouse/Felix Howard'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TDRC' (Recording time)                             '2003'
'TIT2' (Title/songname/content description)         'You Sent Me Flying'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Amy Winehouse'
'TPE2' (Band/orchestra/accompaniment)               'Winehouse, Amy'
'TPUB' (Publisher)                                  'Island'
'TRCK' (Track number/Position in set)               '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['soul', 'jazz', 'female vocalists', 'british', 'amy winehouse']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.62 dB'
'TXXX:replaygain_track_peak'                        '0.508987'

========================== row from database ==========================
                                              'id'  1275504
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Amy Winehouse/Amy Winehouse_/Back To Black/Amy Whinehouse - you sent me flying.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  410
                                           'genre'  funk or soul
                                        'filesize'  6609543
                                           'mtime'  1628357710
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos Winehouse_ Back To Black Whinehouse you sent me flying funk or soul
                                      'tag_artist'  Winehouse, Amy
                                     'tag_release'  Frank
                                       'tag_title'  You Sent Me Flying
                                             'bpm'  100.1
                                    'search_title'  'flying':4 'me':3 'sent':2 'you':1
                                   'search_artist'  'amy':3 'winehouse':1,2
                                  'search_release'  'frank':1
                                     'search_rest'  '00singer':1 'back':5 'black':7 'eos':3 'flying':12 'funk':13 'me':11 'or':14 'sent':10 'songwriter':2 'soul':15 'to':6 'whinehouse':8 'winehouse':4 'you':9
                                    'search_combo'  '00singer':9 'amy':7B 'back':13 'black':15 'eos':11 'flying':4A,20 'frank':8C 'funk':21 'me':3A,19 'or':22 'sent':2A,18 'songwriter':10 'soul':23 'to':14 'whinehouse':16 'winehouse':5B,6B,12 'you':1A,17
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-mixbeat-2', 'Q-PIANO-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-1', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['soul', 'jazz', 'female vocalists', 'british', 'amy winehouse']
                                        'tag_date'  2003
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1628357710.2107682  (2021-08-07 19:35:10)
                             'size'  6609543