======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '152'
                                          'artist'  'Hank Snow'
                                     'text_people'  ''
                                         'release'  'I Went To Your Wedding'
                                           'title'  'Marriage And Divorce'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-2', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['country', 'singer songwriter', 'honky tonk', 'classic country']"
                                     'discogstags'  "['country', 'folk, world, & country']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  ''
                                            'date'  '1969'
                                        'comments'  ''
                                           'genre'  'loc-namerica-country;set-pl-spelling'
                                             'bpm'  '127.605'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'I Went To Your Wedding'
'TBPM' (BPM (beats per minute))                     '127.605'
'TCON' (Content type, a.k.a. Genre)                 ['loc-namerica-country', 'set-pl-spelling']
'TDRC' (Recording time)                             '1969'
'TIT2' (Title/songname/content description)         'Marriage And Divorce'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Hank Snow'
'TRCK' (Track number/Position in set)               '9'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['country', 'folk, world, & country']
'TXXX:lastfmtags'                                   ['country', 'singer songwriter', 'honky tonk', 'classic country']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'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'                        '+0.14 dB'
'TXXX:replaygain_track_peak'                        '0.494670'

========================== row from database ==========================
                                              'id'  764135
                                            'path'  /data/Music/Bulk/0playlists/0novelty themes/spelling/Hank Snow - Marriage And Divorce.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  152
                                           'genre'  loc-namerica-country;set-pl-spelling
                                        'filesize'  6092672
                                           'mtime'  1621630340
                                   'redo_metaread'  0
                                        'rest_str'   0playlists 0novelty themes spelling loc namerica country;set pl spelling
                                      'tag_artist'  Hank Snow
                                     'tag_release'  I Went To Your Wedding
                                       'tag_title'  Marriage And Divorce
                                             'bpm'  127.605
                                    'search_title'  'and':2 'divorce':3 'marriage':1
                                   'search_artist'  'hank':1 'snow':2
                                  'search_release'  'i':1 'to':3 'wedding':5 'went':2 'your':4
                                     'search_rest'  '0novelty':2 '0playlists':1 'country':7,9 'loc':5 'namerica':6 'pl':11 'set':8,10 'spelling':4 'themes':3
                                    'search_combo'  '0novelty':12 '0playlists':11 'and':2A 'country':17,19 'divorce':3A 'hank':4B 'i':6C 'loc':15 'marriage':1A 'namerica':16 'pl':21 'set':18,20 'snow':5B 'spelling':14 'themes':13 'to':8C 'wedding':10C 'went':7C 'your':9C
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', '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-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['country', 'singer songwriter', 'honky tonk', 'classic country']
                                        'tag_date'  1969
                                     'discogstags'  ['country', 'folk, world, & country']

============================== file details ==============================
                                           'mtime'  1621630340.3801308  (2021-05-21 22:52:20)
                             'size'  6092672