======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '206'
                                          'artist'  'Republica'
                                     'text_people'  ''
                                         'release'  'Speed Ballads'
                                           'title'  'From Rush Hour With Love'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['90s', 'alternative', 'female vocalists', 'pop', 'rock']"
                                     'discogstags'  "['rock', 'alternative rock', 'pop rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '1998'
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '140.044'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Speed Ballads'
'TBPM' (BPM (beats per minute))                     '140.044'
'TCON' (Content type, a.k.a. Genre)                 'rock-unsorted'
'TDRC' (Recording time)                             '1998'
'TIT2' (Title/songname/content description)         'From Rush Hour With Love'
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'Republica'
'TRCK' (Track number/Position in set)               '1'
'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'                                  ['rock', 'alternative rock', 'pop rock']
'TXXX:lastfmtags'                                   ['90s', 'alternative', 'female vocalists', 'pop', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.33 dB'
'TXXX:replaygain_track_peak'                        '0.367458'

========================== row from database ==========================
                                              'id'  1298204
                                            'path'  /data/Music/Bulk/00poprockelectronic/Republica/MBZ;#Republica;#Speed Ballads;#01;#From Rush Hour With Love.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  206
                                           'genre'  rock-unsorted
                                        'filesize'  4959621
                                           'mtime'  1637784847
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic MBZ;#Republica;#Speed Ballads;#01;#From rock unsorted
                                      'tag_artist'  Republica
                                     'tag_release'  Speed Ballads
                                       'tag_title'  From Rush Hour With Love
                                             'bpm'  140.044
                                    'search_title'  'from':1 'hour':3 'love':5 'rush':2 'with':4
                                   'search_artist'  'republica':1
                                  'search_release'  'ballads':2 'speed':1
                                     'search_rest'  '00poprockelectronic':1 '01':9,12 'ballads':8,11 'from':10,13 'mbz':2,5 'republica':3,6 'rock':14 'speed':4,7 'unsorted':15
                                    'search_combo'  '00poprockelectronic':9 '01':17,20 'ballads':8C,16,19 'from':1A,18,21 'hour':3A 'love':5A 'mbz':10,13 'republica':6B,11,14 'rock':22 'rush':2A 'speed':7C,12,15 'unsorted':23 'with':4A
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-3', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['90s', 'alternative', 'female vocalists', 'pop', 'rock']
                                        'tag_date'  1998
                                     'discogstags'  ['rock', 'alternative rock', 'pop rock']

============================== file details ==============================
                                           'mtime'  1637784846.7395754  (2021-11-24 21:14:06)
                             'size'  4959621