======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '407'
                                          'artist'  'FM3'
                                     'text_people'  ''
                                         'release'  'ambience sinica'
                                           'title'  'traccia 2'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-1', 'q-busy-1', 'q-grit-1', 'q-play-3', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['minimalism', 'drone', 'china', 'minimal', 'ambient']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '02'
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'set-pl-buddhamachine'
                                             'bpm'  '141.7'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'ambience sinica'
'TBPM' (BPM (beats per minute))                     '141.7'
'TCON' (Content type, a.k.a. Genre)                 'set-pl-buddhamachine'
'TDRC' (Recording time)                             '2005'
'TENC' (Encoded by)                                 'Tag&Rename 3.0.6'
'TIT2' (Title/songname/content description)         'traccia 2'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'FM3'
'TRCK' (Track number/Position in set)               '02'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'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'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.02 dB'
'TXXX:replaygain_track_peak'                        '0.812849'

========================== row from database ==========================
                                              'id'  940838
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Buddha Machine/FM3BuddhaMachine/fm3 - ambience sinica/02 traccia 2.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  407
                                           'genre'  set-pl-buddhamachine
                                        'filesize'  9786477
                                           'mtime'  1637785107
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Buddha Machine FM3BuddhaMachine fm3 02 set pl buddhamachine
                                      'tag_artist'  FM3
                                     'tag_release'  ambience sinica
                                       'tag_title'  traccia 2
                                             'bpm'  141.7
                                    'search_title'  '2':2 'traccia':1
                                   'search_artist'  'fm3':1
                                  'search_release'  'ambience':1 'sinica':2
                                     'search_rest'  'buddha':1 'buddhamachine':7 'fm3':4 'fm3buddha':8 'fm3buddhamachine':3 'machine':2 'pl':6 'set':5
                                    'search_combo'  '2':2A 'ambience':4C 'buddha':6 'buddhamachine':12 'fm3':3B,9 'fm3buddha':13 'fm3buddhamachine':8 'machine':7 'pl':11 'set':10 'sinica':5C 'traccia':1A
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-1', 'q-drums-1', 'q-syn-3', 'q-chart-1', 'q-other-4', 'Q-HAP-2', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['minimalism', 'drone', 'china', 'minimal', 'ambient']
                                        'tag_date'  2005
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1637785106.595403  (2021-11-24 21:18:26)
                             'size'  9786477