======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '326'
                                          'artist'  'Stan Getz and Joao Gilberto'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'O Grande Amor'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-3', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-2', 'q-bass-3', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['bossa nova', 'jazz', 'brazilian', 'latin jazz', 'latin']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1955'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-lounge or exotica or bossa'
                                             'bpm'  '128.414'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '128.414'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-lounge or exotica or bossa'
'TDRC' (Recording time)                             '1955'
'TIT2' (Title/songname/content description)         'O Grande Amor'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Stan Getz and Joao Gilberto'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['bossa nova', 'jazz', 'brazilian', 'latin jazz', 'latin']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+3.30 dB'
'TXXX:replaygain_track_peak'                        '0.487833'

========================== row from database ==========================
                                              'id'  789253
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Getz, Stan/Stan Getz and Joao Gilberto featuring Antonio Carlos Jobim/Stan Getz and Joao Gilberto Featuring Antonio Carlos Jobim - O Grande Amor - 07.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  326
                                           'genre'  prerock-jb-jazz-lounge or exotica or bossa
                                        'filesize'  5228670
                                           'mtime'  1620529611
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Getz, featuring Antonio Carlos Jobim Featuring Antonio Carlos Jobim 07 prerock jb jazz lounge exotica bossa
                                      'tag_artist'  Stan Getz and Joao Gilberto
                                     'tag_release'  None
                                       'tag_title'  O Grande Amor
                                             'bpm'  128.414
                                    'search_title'  'amor':3 'grande':2 'o':1
                                   'search_artist'  'and':3 'getz':2 'gilberto':5 'joao':4 'stan':1
                                  'search_release'  
                                     'search_rest'  'antonio':8 'bossa':14 'carlos':9 'country':4 'exotica':2 'featuring':7 'getz':5,6 'jazz':1 'jb':12 'jobim':10 'lounge':13 'oldies':3 'prerock':11
                                    'search_combo'  'amor':3A 'and':6B 'antonio':16 'bossa':22 'carlos':17 'country':12 'exotica':10 'featuring':15 'getz':5B,13,14 'gilberto':8B 'grande':2A 'jazz':9 'jb':20 'joao':7B 'jobim':18 'lounge':21 'o':1A 'oldies':11 'prerock':19 'stan':4B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['bossa nova', 'jazz', 'brazilian', 'latin jazz', 'latin']
                                        'tag_date'  1955
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620529610.7875319  (2021-05-09 05:06:50)
                             'size'  5228670