======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '180'
                                          'artist'  'Bob Wills'
                                     'text_people'  ''
                                         'release'  'Cindy Walker - (Warped SW04)'
                                           'title'  'Cherokee Maiden'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-OLDST-1', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-2', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['classic country', 'country', 'all', 'texas', 'western swing']"
                                     'discogstags'  "['folk, world, & country']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '2010'
                                        'comments'  ''
                                           'genre'  'loc-namerica-country'
                                             'bpm'  '110.8'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Cindy Walker - (Warped SW04)'
'TBPM' (BPM (beats per minute))                     '110.8'
'TCON' (Content type, a.k.a. Genre)                 'loc-namerica-country'
'TDRC' (Recording time)                             '2010'
'TIT2' (Title/songname/content description)         'Cherokee Maiden'
'TKEY' (Initial key)                                '8A'
'TLEN' (Length)                                     '180845'
'TPE1' (Lead performer(s)/Soloist(s))               'Bob Wills'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '4'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'folk, world, & country'
'TXXX:lastfmtags'                                   ['classic country', 'country', 'all', 'texas', 'western swing']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.20 dB'
'TXXX:replaygain_track_peak'                        '0.499894'

========================== row from database ==========================
                                              'id'  647028
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Warped Records Collection/Warped SW04 - Cindy Walker - The Songwriter Series 2010/04. Cherokee Maiden.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  180
                                           'genre'  loc-namerica-country
                                        'filesize'  7939968
                                           'mtime'  1621629007
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Records Collection The Songwriter Series 2010 04. loc namerica country
                                      'tag_artist'  Bob Wills
                                     'tag_release'  Cindy Walker - (Warped SW04)
                                       'tag_title'  Cherokee Maiden
                                             'bpm'  110.8
                                    'search_title'  'cherokee':1 'maiden':2
                                   'search_artist'  'bob':1 'wills':2
                                  'search_release'  'cindy':1 'sw04':5,6 'walker':2 'warped':3,4
                                     'search_rest'  '04':7,8 '2010':6 'collection':2 'country':11 'loc':9 'namerica':10 'records':1 'series':5 'songwriter':4 'the':3
                                    'search_combo'  '04':17,18 '2010':16 'bob':3B 'cherokee':1A 'cindy':5C 'collection':12 'country':21 'loc':19 'maiden':2A 'namerica':20 'records':11 'series':15 'songwriter':14 'sw04':9C,10C 'the':13 'walker':6C 'warped':7C,8C 'wills':4B
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-2', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['classic country', 'country', 'all', 'texas', 'western swing']
                                        'tag_date'  2010
                                     'discogstags'  ['folk, world, & country']

============================== file details ==============================
                                           'mtime'  1621629007.3843865  (2021-05-21 22:30:07)
                             'size'  7939968