======================== unified (from filesystem) ========================
                                         'bitrate'  '249.897'
                                        'duration'  '314'
                                          'artist'  'Paula Abdul'
                                     'text_people'  ''
                                         'release'  'Spellbound'
                                           'title'  'Vibeology'
                                           'quals'  ("['Q-HAP-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['80s', 'dance', 'female vocalists', 'pop', '90s']"
                                     'discogstags'  "['electronic', 'house', 'downtempo']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  ''
                                            'date'  '1985'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-dance'
                                             'bpm'  '117.877'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Spellbound'
'TBPM' (BPM (beats per minute))                     '117.877'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-dance'
'TDRC' (Recording time)                             '1985'
'TIT2' (Title/songname/content description)         'Vibeology'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Paula Abdul'
'TRCK' (Track number/Position in set)               '5'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic', 'house', 'downtempo']
'TXXX:lastfmtags'                                   ['80s', 'dance', 'female vocalists', 'pop', '90s']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.03 dB'
'TXXX:replaygain_track_peak'                        '0.595905'

========================== row from database ==========================
                                              'id'  1316237
                                            'path'  /data/Music/Bulk/00poprockelectronic/Paula Abdul/Spellbound/MBZ;#Paula Abdul;#Spellbound;#05;#Vibeology.mp3
                                         'working'  None
                                         'bitrate'  249
                                    'duration_sec'  314
                                           'genre'  electronic-generic or radio-dance
                                        'filesize'  9837776
                                           'mtime'  1621696489
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic MBZ;#Paula Abdul;#Spellbound;#05;#Vibeology electronic generic or radio dance
                                      'tag_artist'  Paula Abdul
                                     'tag_release'  Spellbound
                                       'tag_title'  Vibeology
                                             'bpm'  117.877
                                    'search_title'  'vibeology':1
                                   'search_artist'  'abdul':2 'paula':1
                                  'search_release'  'spellbound':1
                                     'search_rest'  '00poprockelectronic':1 '05':8,12 'abdul':6,10 'dance':18 'electronic':14 'generic':15 'mbz':2,4 'or':16 'paula':3,5 'radio':17 'spellbound':7,11 'vibeology':9,13
                                    'search_combo'  '00poprockelectronic':5 '05':12,16 'abdul':3B,10,14 'dance':22 'electronic':18 'generic':19 'mbz':6,8 'or':20 'paula':2B,7,9 'radio':21 'spellbound':4C,11,15 'vibeology':1A,13,17
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-3', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'dance', 'female vocalists', 'pop', '90s']
                                        'tag_date'  1985
                                     'discogstags'  ['electronic', 'house', 'downtempo']

============================== file details ==============================
                                           'mtime'  1621696489.337687  (2021-05-22 17:14:49)
                             'size'  9837776