======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '226'
                                          'artist'  'Guano Apes'
                                     'text_people'  ''
                                         'release'  "Don't You Turn Your Back On Me"
                                           'title'  "Don't You Turn Your Back On Me"
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-3', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['alternative rock', 'alternative', 'female vocalists', 'rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'rock-gr-alt;set-pl-mor'
                                             'bpm'  '104.877'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     "Don't You Turn Your Back On Me"
'TBPM' (BPM (beats per minute))                     '104.877'
'TCON' (Content type, a.k.a. Genre)                 ['rock-gr-alt', 'set-pl-mor']
'TDRC' (Recording time)                             '1999'
'TIT2' (Title/songname/content description)         "Don't You Turn Your Back On Me"
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Guano Apes'
'TRCK' (Track number/Position in set)               '4'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['alternative rock', 'alternative', 'female vocalists', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.08 dB'
'TXXX:replaygain_track_peak'                        '0.486032'

========================== row from database ==========================
                                              'id'  1529558
                                            'path'  /data/Music/Bulk/00poprockelectronic/Guano Apes/Don_t You Turn Your Back On Me/MBZ;#Guano Apes;#Don_t You Turn Your Back On Me;#04;#Don_t You Turn Your Back On Me (Prince P.A.L.-Clubmix).mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  226
                                           'genre'  rock-gr-alt;set-pl-mor
                                        'filesize'  4535734
                                           'mtime'  1636902910
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Don_t MBZ;#Guano Apes;#Don_t Me;#04;#Don_t (Prince P.A.L. Clubmix) rock gr alt;set pl mor
                                      'tag_artist'  Guano Apes
                                     'tag_release'  Don't You Turn Your Back On Me
                                       'tag_title'  Don't You Turn Your Back On Me
                                             'bpm'  104.877
                                    'search_title'  'back':7 'don':1 'dont':3 'me':9 'on':8 't':2 'turn':5 'you':4 'your':6
                                   'search_artist'  'apes':2 'guano':1
                                  'search_release'  'back':7 'don':1 'dont':3 'me':9 'on':8 't':2 'turn':5 'you':4 'your':6
                                     'search_rest'  '00poprockelectronic':1 '04':15,19 'a':25 'alt':32,34 'apes':8,11 'clubmix':28,29 'don':2,9,12,16,20 'gr':31 'guano':5,7 'l':26 'mbz':4,6 'me':14,18 'mor':37 'p':24 'pal':27 'pl':36 'prince':22,23 'rock':30 'set':33,35 't':3,10,13,17,21
                                    'search_combo'  '00poprockelectronic':21 '04':35,39 'a':45 'alt':52,54 'apes':11B,28,31 'back':7A,18C 'clubmix':48,49 'don':1A,12C,22,29,32,36,40 'dont':3A,14C 'gr':51 'guano':10B,25,27 'l':46 'mbz':24,26 'me':9A,20C,34,38 'mor':57 'on':8A,19C 'p':44 'pal':47 'pl':56 'prince':42,43 'rock':50 'set':53,55 't':2A,13C,23,30,33,37,41 'turn':5A,16C 'you':4A,15C 'your':6A,17C
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-2', 'Q-HAP-2', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['alternative rock', 'alternative', 'female vocalists', 'rock']
                                        'tag_date'  1999
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1636902909.8767643  (2021-11-14 16:15:09)
                             'size'  4535734