======================== unified (from filesystem) ========================
                                         'bitrate'  '184.872'
                                        'duration'  '206'
                                          'artist'  'Saltillo'
                                     'text_people'  ''
                                         'release'  'Ganglion'
                                           'title'  'Remember Me?'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['downtempo', 'idm', 'trip hop', 'experimental', 'electronic']"
                                     'discogstags'  "['modern classical', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'electronic-trip hop or downtempo or acid jazz'
                                             'bpm'  '110.967'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Ganglion'
'TBPM' (BPM (beats per minute))                     '110.967'
'TCON' (Content type, a.k.a. Genre)                 'electronic-trip hop or downtempo or acid jazz'
'TDRC' (Recording time)                             '2006'
'TIT2' (Title/songname/content description)         'Remember Me?'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Saltillo'
'TRCK' (Track number/Position in set)               '3'
'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:discogstags'                                  ['modern classical', 'electronic']
'TXXX:lastfmtags'                                   ['downtempo', 'idm', 'trip hop', 'experimental', 'electronic']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.70 dB'
'TXXX:replaygain_track_peak'                        '0.521898'

========================== row from database ==========================
                                              'id'  1349024
                                            'path'  /data/Music/Bulk/00poprockelectronic/00trip/Saltillo/Saltillo - Ganglion - 03 - Remember Me.mp3
                                         'working'  None
                                         'bitrate'  184
                                    'duration_sec'  206
                                           'genre'  electronic-trip hop or downtempo or acid jazz
                                        'filesize'  4774606
                                           'mtime'  1636910916
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00trip 03 electronic trip hop or downtempo or acid jazz
                                      'tag_artist'  Saltillo
                                     'tag_release'  Ganglion
                                       'tag_title'  Remember Me?
                                             'bpm'  110.967
                                    'search_title'  'me':2 'remember':1
                                   'search_artist'  'saltillo':1
                                  'search_release'  'ganglion':1
                                     'search_rest'  '00poprockelectronic':1 '00trip':2 'acid':8 'downtempo':7 'electronic':3 'hop':5 'jazz':9 'or':6 'trip':4
                                    'search_combo'  '00poprockelectronic':5 '00trip':6 'acid':12 'downtempo':11 'electronic':7 'ganglion':4C 'hop':9 'jazz':13 'me':2A 'or':10 'remember':1A 'saltillo':3B 'trip':8
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-2', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['downtempo', 'idm', 'trip hop', 'experimental', 'electronic']
                                        'tag_date'  2006
                                     'discogstags'  ['modern classical', 'electronic']

============================== file details ==============================
                                           'mtime'  1636910916.168416  (2021-11-14 18:28:36)
                             'size'  4774606