======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '234'
                                          'artist'  'Florrie'
                                     'text_people'  ''
                                         'release'  'Introduction'
                                           'title'  'Summer Nights'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['electronic', 'electropop', 'female vocalists', 'british', 'pop']"
                                     'discogstags'  "['electronic', 'pop', 'synth-pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '2010'
                                        'comments'  ''
                                           'genre'  'electronic-we-electropop or synthpop'
                                             'bpm'  '114.868'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Introduction'
'TBPM' (BPM (beats per minute))                     '114.868'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-electropop or synthpop'
'TDRC' (Recording time)                             '2010'
'TIT2' (Title/songname/content description)         'Summer Nights'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Florrie'
'TRCK' (Track number/Position in set)               '4'
'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'                                  ['electronic', 'pop', 'synth-pop']
'TXXX:lastfmtags'                                   ['electronic', 'electropop', 'female vocalists', 'british', 'pop']
'TXXX:original release date'                        ['2010', '2010']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.50 dB'
'TXXX:replaygain_track_peak'                        '0.557468'

========================== row from database ==========================
                                              'id'  1358599
                                            'path'  /data/Music/Bulk/00poprockelectronic/Florrie/Summer+Nights.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  234
                                           'genre'  electronic-we-electropop or synthpop
                                        'filesize'  3762238
                                           'mtime'  1628353886
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Summer+Nights electronic we electropop synthpop
                                      'tag_artist'  Florrie
                                     'tag_release'  Introduction
                                       'tag_title'  Summer Nights
                                             'bpm'  114.868
                                    'search_title'  'nights':2 'summer':1
                                   'search_artist'  'florrie':1
                                  'search_release'  'introduction':1
                                     'search_rest'  '00poprockelectronic':1 'electronic':4 'electropop':6 'nights':3 'summer':2 'synthpop':7 'we':5
                                    'search_combo'  '00poprockelectronic':5 'electronic':8 'electropop':10 'florrie':3B 'introduction':4C 'nights':2A,7 'summer':1A,6 'synthpop':11 'we':9
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', '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-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['electronic', 'electropop', 'female vocalists', 'british', 'pop']
                                        'tag_date'  2010
                                     'discogstags'  ['electronic', 'pop', 'synth-pop']

============================== file details ==============================
                                           'mtime'  1628353885.7946746  (2021-08-07 18:31:25)
                             'size'  3762238