======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '184'
                                          'artist'  'Duke Ellington'
                                     'text_people'  ''
                                         'release'  'GOLDEN BIG BAND ERA VOL. 1'
                                           'title'  'MAGENTA HAZE'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-3', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['big band', 'jazz', 'piano', 'blues', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '1950'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-soft-swing;prerock-jb-jazz-soft-salon or easy'
                                             'bpm'  '131.841'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'GOLDEN BIG BAND ERA VOL. 1'
'TBPM' (BPM (beats per minute))                     '131.841'
'TCON' (Content type, a.k.a. Genre)                 ['prerock-jb-jazz-soft-swing', 'prerock-jb-jazz-soft-salon or easy']
'TDRC' (Recording time)                             '1950'
'TIT2' (Title/songname/content description)         'MAGENTA HAZE'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Duke Ellington'
'TRCK' (Track number/Position in set)               '4'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['big band', 'jazz', 'piano', 'blues', 'swing']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.29 dB'
'TXXX:replaygain_track_peak'                        '0.454083'

========================== row from database ==========================
                                              'id'  679592
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Duke Ellington/04_DUKE ELLINGTON_MAGENTA HAZE_GOLDEN BIG BAND ERA VOL. 1.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  184
                                           'genre'  prerock-jb-jazz-soft-swing;prerock-jb-jazz-soft-salon or easy
                                        'filesize'  2957846
                                           'mtime'  1620572496
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 04_DUKE ELLINGTON_MAGENTA HAZE_GOLDEN prerock jb jazz soft swing;prerock jb jazz soft salon or easy
                                      'tag_artist'  Duke Ellington
                                     'tag_release'  GOLDEN BIG BAND ERA VOL. 1
                                       'tag_title'  MAGENTA HAZE
                                             'bpm'  131.841
                                    'search_title'  'haze':2 'magenta':1
                                   'search_artist'  'duke':1 'ellington':2
                                  'search_release'  '1':7 'band':3 'big':2 'era':4 'golden':1 'vol':5,6
                                     'search_rest'  '04':5 'country':4 'duke':6 'easy':20 'ellington':7 'exotica':2 'golden':10 'haze':9 'jazz':1 'jb':12 'magenta':8 'oldies':3 'or':19 'prerock':11,15,17 'salon':18 'soft':13 'swing':14,16
                                    'search_combo'  '04':16 '1':11C 'band':7C 'big':6C 'country':15 'duke':3B,17 'easy':31 'ellington':4B,18 'era':8C 'exotica':13 'golden':5C,21 'haze':2A,20 'jazz':12 'jb':23 'magenta':1A,19 'oldies':14 'or':30 'prerock':22,26,28 'salon':29 'soft':24 'swing':25,27 'vol':9C,10C
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-4', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['big band', 'jazz', 'piano', 'blues', 'swing']
                                        'tag_date'  1950
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620572496.3975627  (2021-05-09 17:01:36)
                             'size'  2957846