======================== unified (from filesystem) ========================
                                         'bitrate'  '249.475'
                                        'duration'  '232'
                                          'artist'  'Boney M.'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Mega Mix'
                                           'quals'  ("['Q-HAP-4', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-3', 'q-bass-2', 'q-busy-3', 'q-grit-1', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['80s', 'dance', '70s', 'pop', 'disco']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1980'
                                        'comments'  ''
                                           'genre'  'electronic-we-disco or italo'
                                             'bpm'  '121.921'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '121.921'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-disco or italo'
'TDRC' (Recording time)                             '1980'
'TIT2' (Title/songname/content description)         'Mega Mix'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Boney M.'
'TXXX:Q-HAP'                                        '4'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['80s', 'dance', '70s', 'pop', 'disco']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.37 dB'
'TXXX:replaygain_track_peak'                        '0.579134'

========================== row from database ==========================
                                              'id'  1361431
                                            'path'  /data/Music/Bulk/00poprockelectronic-waves-disco/00disco-italo/Boney M. - Boney M/Gold (20 Super Hits) - 20 - Mega Mix - Rivers Of Babylon,sunny,daddy Cool,ma Baker,rasputin.mp3
                                         'working'  None
                                         'bitrate'  249
                                    'duration_sec'  232
                                           'genre'  electronic-we-disco or italo
                                        'filesize'  7241365
                                           'mtime'  1620533889
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic waves disco 00disco italo Gold (20 Super Hits) 20 Rivers Of Babylon,sunny,daddy Cool,ma Baker,rasputin electronic we disco or italo
                                      'tag_artist'  Boney M.
                                     'tag_release'  None
                                       'tag_title'  Mega Mix
                                             'bpm'  121.921
                                    'search_title'  'mega':1 'mix':2
                                   'search_artist'  'boney':1 'm':2,3
                                  'search_release'  
                                     'search_rest'  '00disco':4 '00poprockelectronic':1 '20':7,8 'babylon':14,17 'baker':24,26 'cool':20,22 'daddy':16,19 'disco':3 'electronic':28 'gold':6 'hits':10,11 'italo':5 'ma':21,23 'of':13 'or':30 'rasputin':25,27 'rivers':12 'sunny':15,18 'super':9 'waves':2 'we':29
                                    'search_combo'  '00disco':9 '00poprockelectronic':6 '20':12,13 'babylon':19,22 'baker':29,31 'boney':3B 'cool':25,27 'daddy':21,24 'disco':8 'electronic':33 'gold':11 'hits':15,16 'italo':10 'm':4B,5B 'ma':26,28 'mega':1A 'mix':2A 'of':18 'or':35 'rasputin':30,32 'rivers':17 'sunny':20,23 'super':14 'waves':7 'we':34
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-3', 'q-other-1', 'Q-HAP-4', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['80s', 'dance', '70s', 'pop', 'disco']
                                        'tag_date'  1980
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620533889.1442833  (2021-05-09 06:18:09)
                             'size'  7241365