======================== unified (from filesystem) ========================
                                         'bitrate'  '159.847'
                                        'duration'  '261'
                                          'artist'  'Gang Starr'
                                     'text_people'  ''
                                         'release'  'Mp3'
                                           'title'  'Full Clip Remix'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-3', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['underground hip hop', 'new york', 'hip hop', 'rap']"
                                     'discogstags'  "['hip hop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'hip hop or rnb or rap or turntablism'
                                             'bpm'  '95.348'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Mp3'
'TBPM' (BPM (beats per minute))                     '95.348'
'TCON' (Content type, a.k.a. Genre)                 'hip hop or rnb or rap or turntablism'
'TIT2' (Title/songname/content description)         'Full Clip Remix'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Gang Starr'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '3'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'hip hop'
'TXXX:lastfmtags'                                   ['underground hip hop', 'new york', 'hip hop', 'rap']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+8.27 dB'
'TXXX:replaygain_track_peak'                        '0.170560'

========================== row from database ==========================
                                              'id'  1302389
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Gangstarr !26 Sticky Fingaz - Full Clip (1).mp3
                                         'working'  None
                                         'bitrate'  159
                                    'duration_sec'  261
                                           'genre'  hip hop or rnb or rap or turntablism
                                        'filesize'  5221066
                                           'mtime'  1620572814
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] Gangstarr !26 Sticky Fingaz (1) hip hop or rnb or rap or turntablism
                                      'tag_artist'  Gang Starr
                                     'tag_release'  Mp3
                                       'tag_title'  Full Clip Remix
                                             'bpm'  95.348
                                    'search_title'  'clip':2 'full':1 'remix':3
                                   'search_artist'  'gang':1 'starr':2
                                  'search_release'  'mp3':1
                                     'search_rest'  '00poprockelectronic':1 '1':11,12 '26':8 'files':5,6 'fingaz':10 'gangstarr':7 'hip':13 'hop':14 'loose':3,4 'or':15 'rap':17 'rnb':16 'sticky':9 'turntablism':18 'unsorted':2
                                    'search_combo'  '00poprockelectronic':7 '1':17,18 '26':14 'clip':2A 'files':11,12 'fingaz':16 'full':1A 'gang':4B 'gangstarr':13 'hip':19 'hop':20 'loose':9,10 'mp3':6C 'or':21 'rap':23 'remix':3A 'rnb':22 'starr':5B 'sticky':15 'turntablism':24 'unsorted':8
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-3', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['underground hip hop', 'new york', 'hip hop', 'rap']
                                        'tag_date'  
                                     'discogstags'  ['hip hop']

============================== file details ==============================
                                           'mtime'  1620572814.4084547  (2021-05-09 17:06:54)
                             'size'  5221066