======================== unified (from filesystem) ========================
                                         'bitrate'  '130.212'
                                        'duration'  '452'
                                          'artist'  'Albert King'
                                     'text_people'  ''
                                         'release'  'Dimitri - Ful, Soul & Jazz'
                                           'title'  "'Til My Back Ain't Got No Bone"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-2', 'Q-OLDST-2', "
 "'Q-JZFKS-3', 'Q-SYN-2', 'Q-BUSY-3', 'Q-GRIT-2', 'Q-PLAY-3', 'q-bass-4', "
 "'Q-CHART-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'Q-MIXBEAT-2']")
                                      'lastfmtags'  "['guitar', 'electric blues', 'classic blues', 'blues', 'rhythm and blues']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '142.8'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Dimitri - Ful, Soul & Jazz'
'TBPM' (BPM (beats per minute))                     '142.8'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TIT2' (Title/songname/content description)         "'Til My Back Ain't Got No Bone"
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Albert King'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf58.45.100'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['guitar', 'electric blues', 'classic blues', 'blues', 'rhythm and blues']
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+2.01 dB'
'TXXX:replaygain_track_peak'                        '0.862114'
'TXXX:youtube'                                      'eVVOn5a4ILo'

========================== row from database ==========================
                                              'id'  1510536
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Dimitri/FunkSoulJazz/Albert King - _Til My Back Ain_t Got No Bone-eVVOn5a4ILo.mp3
                                         'working'  None
                                         'bitrate'  130
                                    'duration_sec'  452
                                           'genre'  funk or soul
                                        'filesize'  7363819
                                           'mtime'  1628357623
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm FunkSoulJazz _Til Ain_t eVVOn5a4ILo funk or soul
                                      'tag_artist'  Albert King
                                     'tag_release'  Dimitri - Ful, Soul & Jazz
                                       'tag_title'  'Til My Back Ain't Got No Bone
                                             'bpm'  142.8
                                    'search_title'  'ain':5 'aint':7 'back':4 'bone':10 'got':8 'my':3 'no':9 't':6 'til':1,2
                                   'search_artist'  'albert':1 'king':2
                                  'search_release'  'dimitri':1 'ful':2,3 'jazz':5 'soul':4
                                     'search_rest'  'ain':3 'e':10 'evvon5a4ilo':5 'funk':6 'funksouljazz':1 'jazz':9 'or':7 'soul':8 't':4 'til':2 'vvon5a4ilo':11
                                    'search_combo'  'ain':5A,20 'aint':7A 'albert':11B 'back':4A 'bone':10A 'dimitri':13C 'e':27 'evvon5a4ilo':22 'ful':14C,15C 'funk':23 'funksouljazz':18 'got':8A 'jazz':17C,26 'king':12B 'my':3A 'no':9A 'or':24 'soul':16C,25 't':6A,21 'til':1A,2A,19 'vvon5a4ilo':28
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-2', 'Q-OLDST-2', 'Q-GRIT-2', 'Q-UNU-1', 'Q-JZFKS-3', 'Q-CHART-2', 'q-drums-4', 'Q-SYN-2', 'q-other-3', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-3', 'q-bass-4']
                                      'lastfmtags'  ['guitar', 'electric blues', 'classic blues', 'blues', 'rhythm and blues']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1628357622.6063251  (2021-08-07 19:33:42)
                             'size'  7363819