======================== unified (from filesystem) ========================
                                         'bitrate'  '178.856'
                                        'duration'  '181'
                                          'artist'  'Chet Baker'
                                     'text_people'  ''
                                         'release'  'Chet Baker Sings'
                                           'title'  'But Not for Me'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-3', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'Q-PLAY-2', 'q-bass-4', 'q-busy-2', 'q-grit-2', "
 "'Q-PIANO-2', 'q-chart-3', 'q-drums-1', 'q-other-3', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['vocal jazz', 'blues', 'jazz', 'trumpet', 'cool jazz']"
                                     'discogstags'  "['jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  '14'
                                            'date'  '1989'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-bebop or cool or beat'
                                             'bpm'  '84.105'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'COMM:CDDB Disc ID:XXX'                             'A30A650E'
'COMM:ID3v1 Comment:XXX'                            'A30A650E'
'TALB' (Album/Movie/Show title)                     'Chet Baker Sings'
'TBPM' (BPM (beats per minute))                     '84.105'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-bebop or cool or beat'
'TDRC' (Recording time)                             '1989'
'TIT2' (Title/songname/content description)         'But Not for Me'
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'Chet Baker'
'TRCK' (Track number/Position in set)               '7/14'
'TSSE' (Software/Hardware and settings used for encoding)  'Audiograbber 1.80, LAME dll 3.92, VBR 3, Stereo, High quality'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'jazz'
'TXXX:lastfmtags'                                   ['vocal jazz', 'blues', 'jazz', 'trumpet', 'cool jazz']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.12 dB'
'TXXX:replaygain_track_peak'                        '0.643630'

========================== row from database ==========================
                                              'id'  1265307
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Chet Baker/Chet Baker Sings/Chet Baker - 07 - But Not for Me.mp3
                                         'working'  None
                                         'bitrate'  178
                                    'duration_sec'  181
                                           'genre'  prerock-jb-jazz-bebop or cool or beat
                                        'filesize'  4058496
                                           'mtime'  1620523991
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 07 prerock jb jazz bebop cool beat
                                      'tag_artist'  Chet Baker
                                     'tag_release'  Chet Baker Sings
                                       'tag_title'  But Not for Me
                                             'bpm'  84.105
                                    'search_title'  'but':1 'for':3 'me':4 'not':2
                                   'search_artist'  'baker':2 'chet':1
                                  'search_release'  'baker':2 'chet':1 'sings':3
                                     'search_rest'  'beat':9 'bebop':7 'cool':8 'country':4 'exotica':2 'jazz':1 'jb':6 'oldies':3 'prerock':5
                                    'search_combo'  'baker':6B,8C 'beat':18 'bebop':16 'but':1A 'chet':5B,7C 'cool':17 'country':13 'exotica':11 'for':3A 'jazz':10 'jb':15 'me':4A 'not':2A 'oldies':12 'prerock':14 'sings':9C
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['vocal jazz', 'blues', 'jazz', 'trumpet', 'cool jazz']
                                        'tag_date'  1989
                                     'discogstags'  ['jazz']

============================== file details ==============================
                                           'mtime'  1620523990.628488  (2021-05-09 03:33:10)
                             'size'  4058496