======================== unified (from filesystem) ========================
                                         'bitrate'  '112.0'
                                        'duration'  '237'
                                          'artist'  'Van Halen'
                                     'text_people'  ''
                                         'release'  'top100'
                                           'title'  'Jump'
                                           'quals'  ("['Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-OLDST-3', "
 "'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-3', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-3']")
                                      'lastfmtags'  "['80s', 'heavy metal', 'rock', 'hard rock', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1985'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-dance;set-pl-billboard'
                                             'bpm'  '86.659'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'top100'
'TBPM' (BPM (beats per minute))                     '86.659'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-generic or radio-dance', 'set-pl-billboard']
'TDRC' (Recording time)                             '1985'
'TIT2' (Title/songname/content description)         'Jump'
'TKEY' (Initial key)                                '8B'
'TPE1' (Lead performer(s)/Soloist(s))               'Van Halen'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Mp3gain_minmax'                               '121,189'
'TXXX:Mp3gain_undo'                                 '+003,+003,N'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:Tracknum'                                     '056'
'TXXX:lastfmtags'                                   ['80s', 'heavy metal', 'rock', 'hard rock', 'classic rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.94 dB'
'TXXX:replaygain_track_peak'                        '0.604208'

========================== row from database ==========================
                                              'id'  1406354
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/top100/056-Van_Halen-Jump.mp3
                                         'working'  None
                                         'bitrate'  112
                                    'duration_sec'  237
                                           'genre'  electronic-generic or radio-dance;set-pl-billboard
                                        'filesize'  3320950
                                           'mtime'  1620384756
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat 056 Van_Halen electronic generic or radio dance;set pl billboard
                                      'tag_artist'  Van Halen
                                     'tag_release'  top100
                                       'tag_title'  Jump
                                             'bpm'  86.659
                                    'search_title'  'jump':1
                                   'search_artist'  'halen':2 'van':1
                                  'search_release'  'top100':1
                                     'search_rest'  '00poprockelectronic':1 'billboard':15 'dance':3,10,12 'electronic':7 'generic':2 'halen':6 'or':8 'pl':14 'radio':9 'set':11,13 'trapbeat':4 'van':5
                                    'search_combo'  '00poprockelectronic':5 'billboard':19 'dance':7,14,16 'electronic':11 'generic':6 'halen':3B,10 'jump':1A 'or':12 'pl':18 'radio':13 'set':15,17 'top100':4C 'trapbeat':8 'van':2B,9
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-3', 'q-syn-3', 'q-chart-3', 'q-other-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'heavy metal', 'rock', 'hard rock', 'classic rock']
                                        'tag_date'  1985
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620384756.1890287  (2021-05-07 12:52:36)
                             'size'  3320950