======================== unified (from filesystem) ========================
                                         'bitrate'  '256.868'
                                        'duration'  '284'
                                          'artist'  'US3'
                                     'text_people'  ''
                                         'release'  'An Ordinary Day in an Unusual'
                                           'title'  "Sittin' on My Park Bench"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-2', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['jazz', 'acid jazz', 'electronic', 'hip hop', 'funk']"
                                     'discogstags'  "['jazz', 'hip hop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'electronic-trip hop or downtempo or acid jazz'
                                             'bpm'  '85.058'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'An Ordinary Day in an Unusual'
'TBPM' (BPM (beats per minute))                     '85.058'
'TCON' (Content type, a.k.a. Genre)                 'electronic-trip hop or downtempo or acid jazz'
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         "Sittin' on My Park Bench"
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'US3'
'TRCK' (Track number/Position in set)               '6'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['jazz', 'hip hop']
'TXXX:lastfmtags'                                   ['jazz', 'acid jazz', 'electronic', 'hip hop', 'funk']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.94 dB'
'TXXX:replaygain_track_peak'                        '0.448880'

========================== row from database ==========================
                                              'id'  1507518
                                            'path'  /data/Music/Bulk/00poprockelectronic/00trip/US3/MBZ;#US3;#An Ordinary Day in an Unusual Place;#06;#Sittin_ on My Park Bench.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  284
                                           'genre'  electronic-trip hop or downtempo or acid jazz
                                        'filesize'  9126162
                                           'mtime'  1636911046
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00trip MBZ;#US3;#An Place;#06;#Sittin_ electronic trip hop or downtempo or acid jazz
                                      'tag_artist'  US3
                                     'tag_release'  An Ordinary Day in an Unusual
                                       'tag_title'  Sittin' on My Park Bench
                                             'bpm'  85.058
                                    'search_title'  'bench':6 'my':4 'on':3 'park':5 'sittin':1,2
                                   'search_artist'  'us3':1
                                  'search_release'  'an':1 'day':3 'in':4 'ordinary':2 'unusual':5
                                     'search_rest'  '00poprockelectronic':1 '00trip':2 '06':10,13 'acid':20 'an':5,8 'downtempo':19 'electronic':15 'hop':17 'jazz':21 'mbz':3,6 'or':18 'place':9,12 'sittin':11,14 'trip':16 'us3':4,7
                                    'search_combo'  '00poprockelectronic':13 '00trip':14 '06':22,25 'acid':32 'an':8C,17,20 'bench':6A 'day':10C 'downtempo':31 'electronic':27 'hop':29 'in':11C 'jazz':33 'mbz':15,18 'my':4A 'on':3A 'or':30 'ordinary':9C 'park':5A 'place':21,24 'sittin':1A,2A,23,26 'trip':28 'unusual':12C 'us3':7B,16,19
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['jazz', 'acid jazz', 'electronic', 'hip hop', 'funk']
                                        'tag_date'  2001
                                     'discogstags'  ['jazz', 'hip hop']

============================== file details ==============================
                                           'mtime'  1636911045.914727  (2021-11-14 18:30:45)
                             'size'  9126162