======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '373'
                                          'artist'  'Gigamesh'
                                     'text_people'  ''
                                         'release'  'Lanig'
                                           'title'  "Don't Stop (Good Night Keaton Remix) - YouTube"
                                           'quals'  ("['Q-MIXBEAT-3', 'Q-HAP-2', 'Q-UNU-1', 'q-syn-3', 'q-bass-2', 'q-busy-3', "
 "'q-grit-2', 'q-play-2', 'Q-JZFKS-1', 'Q-OLDST-3', 'q-chart-2', 'q-drums-4', "
 "'q-other-2', 'q-piano-1', 'q-vocals-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  "['minnesota', 'groove', 'electronic-lounge', 'sxsw 2010', 'nu-bluz']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-th-techno-minimal or deephouse'
                                             'bpm'  '114.8'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'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')
'TALB' (Album/Movie/Show title)                     'Lanig'
'TBPM' (BPM (beats per minute))                     '114.8'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno-minimal or deephouse'
'TIT2' (Title/songname/content description)         "Don't Stop (Good Night Keaton Remix) - YouTube"
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'Gigamesh'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['minnesota', 'groove', 'electronic-lounge', 'sxsw 2010', 'nu-bluz']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.05 dB'
'TXXX:replaygain_track_peak'                        '0.622292'

========================== row from database ==========================
                                              'id'  1508660
                                            'path'  /data/Music/Bulk/00poprockelectronic/Lanig/Gigamesh - Don_t Stop (Good Night Keaton Remix) - YouTube.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  373
                                           'genre'  electronic-th-techno-minimal or deephouse
                                        'filesize'  8963287
                                           'mtime'  1621085264
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Don_t electronic th techno minimal or deephouse
                                      'tag_artist'  Gigamesh
                                     'tag_release'  Lanig
                                       'tag_title'  Don't Stop (Good Night Keaton Remix) - YouTube
                                             'bpm'  114.8
                                    'search_title'  'don':1 'dont':3 'good':5,6 'keaton':8 'night':7 'remix':9,10 'stop':4 't':2 'tube':13 'you':12 'youtube':11
                                   'search_artist'  'gigamesh':1
                                  'search_release'  'lanig':1
                                     'search_rest'  '00poprockelectronic':1 'deephouse':9 'don':2 'electronic':4 'minimal':7 'or':8 't':3 'techno':6 'th':5
                                    'search_combo'  '00poprockelectronic':16 'deephouse':24 'don':1A,17 'dont':3A 'electronic':19 'gigamesh':14B 'good':5A,6A 'keaton':8A 'lanig':15C 'minimal':22 'night':7A 'or':23 'remix':9A,10A 'stop':4A 't':2A,18 'techno':21 'th':20 'tube':13A 'you':12A 'youtube':11A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-2', 'Q-HAP-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['minnesota', 'groove', 'electronic-lounge', 'sxsw 2010', 'nu-bluz']
                                        'tag_date'  
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1621085263.8479385  (2021-05-15 15:27:43)
                             'size'  8963287