======================== unified (from filesystem) ========================
                                         'bitrate'  '159.981'
                                        'duration'  '216'
                                          'artist'  'Robert Palmer'
                                     'text_people'  ''
                                         'release'  'Billboard Top 100 - 1986'
                                           'title'  "I Didin't Mean To Turn You On"
                                           'quals'  ("['Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', 'Q-OLDST-3', "
 "'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-3', "
 "'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['80s', 'classic rock', 'british', 'pop', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '46'
                                      'tracktotal'  ''
                                            'date'  '1986'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-unsorted;rock-cppex;set-pl-billboard'
                                             'bpm'  '121.264'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            'Billboard'
'COMM:Track:Comments:eng'                           'Billboard'
'TALB' (Album/Movie/Show title)                     'Billboard Top 100 - 1986'
'TBPM' (BPM (beats per minute))                     '121.264'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-generic or radio-unsorted', 'rock-cppex', 'set-pl-billboard']
'TDRC' (Recording time)                             '1986'
'TIT2' (Title/songname/content description)         "I Didin't Mean To Turn You On"
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'Robert Palmer'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '46'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['80s', 'classic rock', 'british', 'pop', 'rock']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+12.68 dB'
'TXXX:replaygain_track_peak'                        '0.158672'

========================== row from database ==========================
                                              'id'  1521774
                                            'path'  /data/Music/Bulk/00poprockelectronic/Billboard/046 - Robert Palmer - I Didin_t Mean To Turn You On.mp3
                                         'working'  None
                                         'bitrate'  159
                                    'duration_sec'  216
                                           'genre'  electronic-generic or radio-unsorted;rock-cppex;set-pl-billboard
                                        'filesize'  4332938
                                           'mtime'  1620737040
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 046 Didin_t electronic generic or radio unsorted;rock cppex;set pl billboard
                                      'tag_artist'  Robert Palmer
                                     'tag_release'  Billboard Top 100 - 1986
                                       'tag_title'  I Didin't Mean To Turn You On
                                             'bpm'  121.264
                                    'search_title'  'didin':2 'didint':4 'i':1 'mean':5 'on':9 't':3 'to':6 'turn':7 'you':8
                                   'search_artist'  'palmer':2 'robert':1
                                  'search_release'  '100':3 '1986':4 'billboard':1 'top':2
                                     'search_rest'  '00poprockelectronic':1 'billboard':17 'cppex':12,14 'didin':2 'electronic':4 'generic':5 'or':6 'pl':16 'radio':7 'rock':9,11 'set':13,15 't':3 'unsorted':8,10
                                    'search_combo'  '00poprockelectronic':16 '100':14C '1986':15C 'billboard':12C,32 'cppex':27,29 'didin':2A,17 'didint':4A 'electronic':19 'generic':20 'i':1A 'mean':5A 'on':9A 'or':21 'palmer':11B 'pl':31 'radio':22 'robert':10B 'rock':24,26 'set':28,30 't':3A,18 'to':6A 'top':13C 'turn':7A 'unsorted':23,25 'you':8A
                                    'tag_tracknum'  46
                                      'num_images'  0
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-1', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'classic rock', 'british', 'pop', 'rock']
                                        'tag_date'  1986
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620737040.1856492  (2021-05-11 14:44:00)
                             'size'  4332938