======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '283'
                                          'artist'  'Duran Duran'
                                     'text_people'  ''
                                         'release'  'Greatest'
                                           'title'  'Rio'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['80s', 'new wave', 'synth pop', 'pop', 'rock']"
                                     'discogstags'  "['electronic', 'pop', 'new wave', 'synth-pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '1998'
                                        'comments'  ''
                                           'genre'  'electronic-we-new wave or post punk'
                                             'bpm'  '140.433'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Greatest'
'TBPM' (BPM (beats per minute))                     '140.433'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-new wave or post punk'
'TDRC' (Recording time)                             '1998'
'TIT2' (Title/songname/content description)         'Rio'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Duran Duran'
'TRCK' (Track number/Position in set)               '6'
'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'                                  ['electronic', 'pop', 'new wave', 'synth-pop']
'TXXX:lastfmtags'                                   ['80s', 'new wave', 'synth pop', 'pop', 'rock']
'TXXX:original release date'                        ['1998', '1998']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.19 dB'
'TXXX:replaygain_track_peak'                        '0.499324'

========================== row from database ==========================
                                              'id'  1331715
                                            'path'  /data/Music/Bulk/00poprockelectronic-waves-disco/00newwave-postpunk/Duran Duran/Greatest/MBZ;#Duran Duran;#Greatest;#06;#Rio.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  283
                                           'genre'  electronic-we-new wave or post punk
                                        'filesize'  6821424
                                           'mtime'  1620611410
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic waves disco 00newwave postpunk MBZ;#Duran Duran;#Greatest;#06;#Rio electronic we new wave or post punk
                                      'tag_artist'  Duran Duran
                                     'tag_release'  Greatest
                                       'tag_title'  Rio
                                             'bpm'  140.433
                                    'search_title'  'rio':1
                                   'search_artist'  'duran':1
                                  'search_release'  'greatest':1
                                     'search_rest'  '00newwave':4 '00poprockelectronic':1 '06':12,16 'disco':3 'duran':7,9,10,14 'electronic':18 'greatest':11,15 'mbz':6,8 'new':20 'or':22 'post':23 'postpunk':5 'punk':24 'rio':13,17 'wave':21 'waves':2 'we':19
                                    'search_combo'  '00newwave':7 '00poprockelectronic':4 '06':15,19 'disco':6 'duran':2B,10,12,13,17 'electronic':21 'greatest':3C,14,18 'mbz':9,11 'new':23 'or':25 'post':26 'postpunk':8 'punk':27 'rio':1A,16,20 'wave':24 'waves':5 'we':22
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-4', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'new wave', 'synth pop', 'pop', 'rock']
                                        'tag_date'  1998
                                     'discogstags'  ['electronic', 'pop', 'new wave', 'synth-pop']

============================== file details ==============================
                                           'mtime'  1620611410.2677393  (2021-05-10 03:50:10)
                             'size'  6821424