======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '374'
                                          'artist'  'sable sheep'
                                     'text_people'  ''
                                         'release'  'upon burning skies'
                                           'title'  'upon burning skies (dub mix)'
                                           'quals'  ("['Q-UNU-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-1', 'q-mixbeat-3']")
                                      'lastfmtags'  "['house', 'electronic', 'deep and dark', 'tech house', '9 of 10 stars']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '4'
                                            'date'  '2013'
                                        'comments'  ''
                                           'genre'  'electronic-th-house'
                                             'bpm'  '123.0'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'upon burning skies'
'TBPM' (BPM (beats per minute))                     '123.0'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-house'
'TDRC' (Recording time)                             '2013'
'TIT2' (Title/songname/content description)         'upon burning skies (dub mix)'
'TKEY' (Initial key)                                '9A'
'TLAN' (Language(s))                                'English'
'TPE1' (Lead performer(s)/Soloist(s))               'sable sheep'
'TRCK' (Track number/Position in set)               '3/4'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['house', 'electronic', 'deep and dark', 'tech house', '9 of 10 stars']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.05 dB'
'TXXX:replaygain_track_peak'                        '0.632076'
'WXXX:'                                             WXXX(encoding=<Encoding.LATIN1: 0>, desc='', url='Www.Beatport.Com')

========================== row from database ==========================
                                              'id'  1304575
                                            'path'  /data/Music/Bulk/00poprockelectronic/Sable_Sheep-Upon_Burning_Skies-MHD012-WEB-2013-BPM/03-sable_sheep-upon_burning_skies_(dub_mix).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  374
                                           'genre'  electronic-th-house
                                        'filesize'  14996291
                                           'mtime'  1620571945
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Sable_Sheep Upon_Burning_Skies MHD012 WEB 2013 BPM 03 sable_sheep upon_burning_skies_(dub_mix) electronic th house
                                      'tag_artist'  sable sheep
                                     'tag_release'  upon burning skies
                                       'tag_title'  upon burning skies (dub mix)
                                             'bpm'  123.0
                                    'search_title'  'burning':2 'dub':4,5 'mix':6,7 'skies':3 'upon':1
                                   'search_artist'  'sable':1 'sheep':2
                                  'search_release'  'burning':2 'skies':3 'upon':1
                                     'search_rest'  '00poprockelectronic':1 '2013':9 'bpm':10 'burning':5,12,17 'dub':14,19 'electronic':21 'house':23 'mhd012':7 'mix':15,20 'sable':2 'sheep':3 'skies':6,13,18 'th':22 'upon':4,11,16 'web':8
                                    'search_combo'  '00poprockelectronic':13 '2013':21 'bpm':22 'burning':2A,11C,17,24,29 'dub':4A,5A,26,31 'electronic':33 'house':35 'mhd012':19 'mix':6A,7A,27,32 'sable':8B,14 'sheep':9B,15 'skies':3A,12C,18,25,30 'th':34 'upon':1A,10C,16,23,28 'web':20
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-1', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['house', 'electronic', 'deep and dark', 'tech house', '9 of 10 stars']
                                        'tag_date'  2013
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620571944.6918316  (2021-05-09 16:52:24)
                             'size'  14996291