======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '168'
                                          'artist'  'Madness'
                                     'text_people'  ''
                                         'release'  'The Business #1'
                                           'title'  'Nutty Theme'
                                           '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-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['80s', 'new wave', 'ska', 'pop', 'british']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '1993'
                                        'comments'  ''
                                           'genre'  'loc-style-reggae or dub or ska or dancehall-ska'
                                             'bpm'  '137.013'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Business #1'
'TBPM' (BPM (beats per minute))                     '137.013'
'TCON' (Content type, a.k.a. Genre)                 'loc-style-reggae or dub or ska or dancehall-ska'
'TDRC' (Recording time)                             '1993'
'TIT2' (Title/songname/content description)         'Nutty Theme'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Madness'
'TRCK' (Track number/Position in set)               '6'
'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:lastfmtags'                                   ['80s', 'new wave', 'ska', 'pop', 'british']
'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'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.28 dB'
'TXXX:replaygain_track_peak'                        '0.589409'

========================== row from database ==========================
                                              'id'  1388397
                                            'path'  /data/Music/Bulk/00localcharacter/00reggae-dub/Madness/MBZ;#Madness;#The Business #1;#06;#Nutty Theme.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  168
                                           'genre'  loc-style-reggae or dub or ska or dancehall-ska
                                        'filesize'  2690550
                                           'mtime'  1620521866
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00reggae dub MBZ;#Madness;#The #1;#06;#Nutty loc style reggae or dub or ska or dancehall ska
                                      'tag_artist'  Madness
                                     'tag_release'  The Business #1
                                       'tag_title'  Nutty Theme
                                             'bpm'  137.013
                                    'search_title'  'nutty':1 'theme':2
                                   'search_artist'  'madness':1
                                  'search_release'  '1':3,4 'business':2 'the':1
                                     'search_rest'  '00reggae':1 '06':10,13 '1':9,12 'dancehall':20 'dub':2 'loc':15 'madness':4,7 'mbz':3,6 'nutty':11,14 'or':18 'reggae':17 'ska':19 'style':16 'the':5,8
                                    'search_combo'  '00reggae':8 '06':17,20 '1':6C,7C,16,19 'business':5C 'dancehall':27 'dub':9 'loc':22 'madness':3B,11,14 'mbz':10,13 'nutty':1A,18,21 'or':25 'reggae':24 'ska':26 'style':23 'the':4C,12,15 'theme':2A
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'new wave', 'ska', 'pop', 'british']
                                        'tag_date'  1993
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620521865.5826647  (2021-05-09 02:57:45)
                             'size'  2690550