======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '181'
                                          'artist'  'Madness'
                                     'text_people'  ''
                                         'release'  'Our House'
                                           'title'  'Embarrassment'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-LOCALNESS-3', "
 "'Q-OLDST-3', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['80s', 'new wave', 'ska', 'pop', 'british']"
                                     'discogstags'  "['rock', 'pop', 'pop rock', 'ska']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  '1983'
                                        'comments'  ''
                                           'genre'  'loc-style-reggae or dub or ska or dancehall-ska'
                                             'bpm'  '145.476'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Our House'
'TBPM' (BPM (beats per minute))                     '145.476'
'TCON' (Content type, a.k.a. Genre)                 'loc-style-reggae or dub or ska or dancehall-ska'
'TDRC' (Recording time)                             '1983'
'TIT2' (Title/songname/content description)         'Embarrassment'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Madness'
'TRCK' (Track number/Position in set)               '7'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['rock', 'pop', 'pop rock', 'ska']
'TXXX:lastfmtags'                                   ['80s', 'new wave', 'ska', 'pop', 'british']
'TXXX:original release date'                        ['1982', '1983']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'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'                                        '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.19 dB'
'TXXX:replaygain_track_peak'                        '0.556859'

========================== row from database ==========================
                                              'id'  1389938
                                            'path'  /data/Music/Bulk/00localcharacter/00reggae-dub/Madness/MBZ;#Madness;#Our House;#07;#Embarrassment.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  181
                                           'genre'  loc-style-reggae or dub or ska or dancehall-ska
                                        'filesize'  2905475
                                           'mtime'  1620521860
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00reggae dub MBZ;#Madness;#Our House;#07;#Embarrassment loc style reggae or dub or ska or dancehall ska
                                      'tag_artist'  Madness
                                     'tag_release'  Our House
                                       'tag_title'  Embarrassment
                                             'bpm'  145.476
                                    'search_title'  'embarrassment':1
                                   'search_artist'  'madness':1
                                  'search_release'  'house':2 'our':1
                                     'search_rest'  '00reggae':1 '07':10,13 'dancehall':20 'dub':2 'embarrassment':11,14 'house':9,12 'loc':15 'madness':4,7 'mbz':3,6 'or':18 'our':5,8 'reggae':17 'ska':19 'style':16
                                    'search_combo'  '00reggae':5 '07':14,17 'dancehall':24 'dub':6 'embarrassment':1A,15,18 'house':4C,13,16 'loc':19 'madness':2B,8,11 'mbz':7,10 'or':22 'our':3C,9,12 'reggae':21 'ska':23 'style':20
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-1', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'new wave', 'ska', 'pop', 'british']
                                        'tag_date'  1983
                                     'discogstags'  ['rock', 'pop', 'pop rock', 'ska']

============================== file details ==============================
                                           'mtime'  1620521859.8801475  (2021-05-09 02:57:39)
                             'size'  2905475