======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '221'
                                          'artist'  'Paul Wilson'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Hippie Invasion'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-OLDST-1', 'Q-UNU-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['done', 'napoli', 'classical crossover', 'classical']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-namerica-country;set-th-hippies'
                                             'bpm'  '132.791'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '132.791'
'TCON' (Content type, a.k.a. Genre)                 ['loc-namerica-country', 'set-th-hippies']
'TIT2' (Title/songname/content description)         'Hippie Invasion'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Paul Wilson'
'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:lastfmtags'                                   ['done', 'napoli', 'classical crossover', 'classical']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.96 dB'
'TXXX:replaygain_track_peak'                        '0.596793'

========================== row from database ==========================
                                              'id'  766753
                                            'path'  /data/Music/Bulk/0playlists/0novelty themes/hippies/Paul Wilson - Hippie Invasion.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  221
                                           'genre'  loc-namerica-country;set-th-hippies
                                        'filesize'  8873232
                                           'mtime'  1621630335
                                   'redo_metaread'  0
                                        'rest_str'   0playlists 0novelty themes hippies loc namerica country;set th hippies
                                      'tag_artist'  Paul Wilson
                                     'tag_release'  None
                                       'tag_title'  Hippie Invasion
                                             'bpm'  132.791
                                    'search_title'  'hippie':1 'invasion':2
                                   'search_artist'  'paul':1 'wilson':2
                                  'search_release'  
                                     'search_rest'  '0novelty':2 '0playlists':1 'country':7,9 'hippies':4 'loc':5 'namerica':6 'set':8,10 'th':11 'themes':3
                                    'search_combo'  '0novelty':6 '0playlists':5 'country':11,13 'hippie':1A 'hippies':8 'invasion':2A 'loc':9 'namerica':10 'paul':3B 'set':12,14 'th':15 'themes':7 'wilson':4B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['done', 'napoli', 'classical crossover', 'classical']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621630335.1765378  (2021-05-21 22:52:15)
                             'size'  8873232