======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '229'
                                          'artist'  'The Staple Singers'
                                     'text_people'  ''
                                         'release'  'Will The Circle Be Unbroken'
                                           'title'  'Somebody Saved Me'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-2', 'Q-UNU-1', 'Q-LOCALNESS-3', "
 "'Q-OLDST-2', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['soul', 'stax', '70s', 'gospel', 'rhythm and blues', 'funk']"
                                     'discogstags'  "['funk / soul', 'gospel']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  '1960'
                                        'comments'  ''
                                           'genre'  'loc-namerica-gospel'
                                             'bpm'  '133.9'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'POPM:Windows Media Player 9 Series'                POPM(email='Windows Media Player 9 Series', rating=160)
'TALB' (Album/Movie/Show title)                     'Will The Circle Be Unbroken'
'TBPM' (BPM (beats per minute))                     '133.9'
'TCON' (Content type, a.k.a. Genre)                 'loc-namerica-gospel'
'TDRC' (Recording time)                             '1960'
'TIT2' (Title/songname/content description)         'Somebody Saved Me'
'TKEY' (Initial key)                                '6B'
'TMED' (Media type)                                 'CD (Lossless)'
'TPE1' (Lead performer(s)/Soloist(s))               'The Staple Singers'
'TPE2' (Band/orchestra/accompaniment)               'The Staple Singers'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '7'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['funk / soul', 'gospel']
'TXXX:lastfmtags'                                   ['soul', 'stax', '70s', 'gospel', 'rhythm and blues', 'funk']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'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'                        '+2.13 dB'
'TXXX:replaygain_track_peak'                        '0.297240'

========================== row from database ==========================
                                              'id'  731257
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/The Staple Singers - Will The Circle Be Unbroken (Extended)/07 - somebody saved me.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  229
                                           'genre'  loc-namerica-gospel
                                        'filesize'  7729234
                                           'mtime'  1621628865
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm (Extended) 07 somebody saved loc namerica gospel
                                      'tag_artist'  The Staple Singers
                                     'tag_release'  Will The Circle Be Unbroken
                                       'tag_title'  Somebody Saved Me
                                             'bpm'  133.9
                                    'search_title'  'me':3 'saved':2 'somebody':1
                                   'search_artist'  'singers':3 'staple':2 'the':1
                                  'search_release'  'be':4 'circle':3 'the':2 'unbroken':5 'will':1
                                     'search_rest'  'extended':1,2 'gospel':7 'loc':5 'namerica':6 'saved':4 'somebody':3
                                    'search_combo'  'be':10C 'circle':9C 'extended':12,13 'gospel':18 'loc':16 'me':3A 'namerica':17 'saved':2A,15 'singers':6B 'somebody':1A,14 'staple':5B 'the':4B,8C 'unbroken':11C 'will':7C
                                    'tag_tracknum'  7
                                      'num_images'  1
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['soul', 'stax', '70s', 'gospel', 'rhythm and blues', 'funk']
                                        'tag_date'  1960
                                     'discogstags'  ['funk / soul', 'gospel']

============================== file details ==============================
                                           'mtime'  1621628864.7844484  (2021-05-21 22:27:44)
                             'size'  7729234