======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '26'
                                          'artist'  'FM3'
                                     'text_people'  ''
                                         'release'  'Buddha Machine 2.0'
                                           'title'  'loop 03 - piano'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-3', 'q-syn-3', 'Q-PLAY-2', 'q-bass-1', 'q-busy-1', 'q-grit-1', "
 "'Q-PIANO-4', 'q-chart-1', 'q-drums-1', 'q-other-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['minimalism', 'drone', 'china', 'minimal', 'ambient']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'set-pl-buddhamachine'
                                             'bpm'  '127.8'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Buddha Machine 2.0'
'TBPM' (BPM (beats per minute))                     '127.8'
'TCON' (Content type, a.k.a. Genre)                 'set-pl-buddhamachine'
'TDRC' (Recording time)                             '2008'
'TIT2' (Title/songname/content description)         'loop 03 - piano'
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'FM3'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '4'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['minimalism', 'drone', 'china', 'minimal', 'ambient']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '1'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+3.10 dB'
'TXXX:replaygain_track_peak'                        '0.651642'

========================== row from database ==========================
                                              'id'  940903
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Buddha Machine/FM3BuddhaMachine/Buddha Machine 2.0/loop 03 - piano.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  26
                                           'genre'  set-pl-buddhamachine
                                        'filesize'  418661
                                           'mtime'  1637785094
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm FM3BuddhaMachine set pl buddhamachine
                                      'tag_artist'  FM3
                                     'tag_release'  Buddha Machine 2.0
                                       'tag_title'  loop 03 - piano
                                             'bpm'  127.8
                                    'search_title'  'loop':1 'piano':2
                                   'search_artist'  'fm3':1
                                  'search_release'  '0':4 '2':3 '20':5 'buddha':1 'machine':2
                                     'search_rest'  'buddhamachine':4 'fm3buddha':5 'fm3buddhamachine':1 'machine':6 'pl':3 'set':2
                                    'search_combo'  '0':7C '2':6C '20':8C 'buddha':4C 'buddhamachine':12 'fm3':3B 'fm3buddha':13 'fm3buddhamachine':9 'loop':1A 'machine':5C,14 'piano':2A 'pl':11 'set':10
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-4', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-1', 'q-drums-1', 'q-syn-3', 'q-chart-1', 'q-other-1', 'Q-HAP-2', 'Q-PLAY-2', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['minimalism', 'drone', 'china', 'minimal', 'ambient']
                                        'tag_date'  2008
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1637785093.9397888  (2021-11-24 21:18:13)
                             'size'  418661