======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '207'
                                          'artist'  'Johnny Cash & Bob Dylan'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "You Are my Sunshine (Live '69)"
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['folk', 'country', 'blues', 'johnny cash', 'bob dylan']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '133.579'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '133.579'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TIT2' (Title/songname/content description)         "You Are my Sunshine (Live '69)"
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Johnny Cash & Bob Dylan'
'TXXX:Mp3gain_minmax'                               '139,198'
'TXXX:Mp3gain_undo'                                 '+006,+006,N'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['folk', 'country', 'blues', 'johnny cash', 'bob dylan']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.62 dB'
'TXXX:replaygain_track_peak'                        '0.413384'

========================== row from database ==========================
                                              'id'  1521628
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Bob Dylan/Johnny Cash & Bob Dylan- You Are my Sunshine (Live _69).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  207
                                           'genre'  ifs-songwriter
                                        'filesize'  3328791
                                           'mtime'  1637328826
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos _69) ifs songwriter
                                      'tag_artist'  Johnny Cash & Bob Dylan
                                     'tag_release'  None
                                       'tag_title'  You Are my Sunshine (Live '69)
                                             'bpm'  133.579
                                    'search_title'  '69':7,8 'are':2 'live':5,6 'my':3 'sunshine':4 'you':1
                                   'search_artist'  'bob':3 'cash':2 'dylan':4 'johnny':1
                                  'search_release'  
                                     'search_rest'  '00singer':1 '69':4,5 'eos':3 'ifs':6 'songwriter':2
                                    'search_combo'  '00singer':13 '69':7A,8A,16,17 'are':2A 'bob':11B 'cash':10B 'dylan':12B 'eos':15 'ifs':18 'johnny':9B 'live':5A,6A 'my':3A 'songwriter':14 'sunshine':4A 'you':1A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-4', 'q-other-2', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['folk', 'country', 'blues', 'johnny cash', 'bob dylan']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1637328825.7159967  (2021-11-19 14:33:45)
                             'size'  3328791