======================== unified (from filesystem) ========================
                                         'bitrate'  '115.667'
                                        'duration'  '160'
                                          'artist'  'Mahalia Jackson'
                                     'text_people'  ''
                                         'release'  'The Roots Of Black Gospel'
                                           'title'  "There's Not A Friend Like Jesus"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-OLDST-1', 'Q-HHRNBTT-1', 'Q-UNU-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['gospel', 'jazz', 'female vocalists', 'soul']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '20'
                                      'tracktotal'  ''
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'loc-namerica-gospel'
                                             'bpm'  '135.004'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'The Roots Of Black Gospel'
'TBPM' (BPM (beats per minute))                     '135.004'
'TCON' (Content type, a.k.a. Genre)                 'loc-namerica-gospel'
'TDRC' (Recording time)                             '2003'
'TIT2' (Title/songname/content description)         "There's Not A Friend Like Jesus"
'TKEY' (Initial key)                                '8B'
'TPE1' (Lead performer(s)/Soloist(s))               'Mahalia Jackson'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '3'
'TRCK' (Track number/Position in set)               '20'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['gospel', 'jazz', 'female vocalists', 'soul']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.54 dB'
'TXXX:replaygain_track_peak'                        '0.386271'

========================== row from database ==========================
                                              'id'  1500933
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/The Roots of Black Gospel/cd 3/20 - Mahalia Jackson - There_s Not A Friend Like Jesu.mp3
                                         'working'  None
                                         'bitrate'  115
                                    'duration_sec'  160
                                           'genre'  loc-namerica-gospel
                                        'filesize'  2452224
                                           'mtime'  1621628403
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country of cd 3 20 There_s loc namerica gospel
                                      'tag_artist'  Mahalia Jackson
                                     'tag_release'  The Roots Of Black Gospel
                                       'tag_title'  There's Not A Friend Like Jesus
                                             'bpm'  135.004
                                    'search_title'  'a':5 'friend':6 'jesus':8 'like':7 'not':4 's':2 'there':1 'theres':3
                                   'search_artist'  'jackson':2 'mahalia':1
                                  'search_release'  'black':4 'gospel':5 'of':3 'roots':2 'the':1
                                     'search_rest'  '20':8 '3':7 'cd':6 'country':4 'exotica':2 'gospel':13 'jazz':1 'loc':11 'namerica':12 'of':5 'oldies':3 's':10 'there':9
                                    'search_combo'  '20':23 '3':22 'a':5A 'black':14C 'cd':21 'country':19 'exotica':17 'friend':6A 'gospel':15C,28 'jackson':10B 'jazz':16 'jesus':8A 'like':7A 'loc':26 'mahalia':9B 'namerica':27 'not':4A 'of':13C,20 'oldies':18 'roots':12C 's':2A,25 'the':11C 'there':1A,24 'theres':3A
                                    'tag_tracknum'  20
                                      'num_images'  1
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['gospel', 'jazz', 'female vocalists', 'soul']
                                        'tag_date'  2003
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621628402.8391798  (2021-05-21 22:20:02)
                             'size'  2452224