======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '426'
                                          'artist'  "Beggar's Opera"
                                     'text_people'  ''
                                         'release'  'progsoup 12'
                                           'title'  'Passacaglia'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['progressive rock', 'art rock', 'symphonic prog', 'rock', '70s']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '46'
                                      'tracktotal'  ''
                                            'date'  '1975'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive;set-pl-progspace'
                                             'bpm'  '142.008'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'MCDI' (Music CD identifier)                        MCDI(data=b'5\x00+\x009\x006\x00+\x007\x00F\x006\x00A\x00+\x00F\x00C\x004\x005\x00+\x001\x004\x002\x000\x002\x00+\x002\x001\x002\x003\x00F\x00+\x002\x00E\x004\x004\x008\x00\x00\x00')
'PRIV:WM/MediaClassPrimaryID:¼}`Ñ#ãâK\x86¡H¤*(D\x1e'  PRIV(owner='WM/MediaClassPrimaryID', data=b'\xbc}`\xd1#\xe3\xe2K\x86\xa1H\xa4*(D\x1e')
'PRIV:WM/MediaClassSecondaryID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/MediaClassSecondaryID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
'TALB' (Album/Movie/Show title)                     'progsoup 12'
'TBPM' (BPM (beats per minute))                     '142.008'
'TCON' (Content type, a.k.a. Genre)                 ['rock-cppex-progressive', 'set-pl-progspace', 'set-pl-progspace']
'TDRC' (Recording time)                             '1975'
'TIT2' (Title/songname/content description)         'Passacaglia'
'TKEY' (Initial key)                                '9A'
'TLEN' (Length)                                     '426173'
'TPE1' (Lead performer(s)/Soloist(s))               "Beggar's Opera"
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '46'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['progressive rock', 'art rock', 'symphonic prog', 'rock', '70s']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.22 dB'
'TXXX:replaygain_track_peak'                        '0.590731'

========================== row from database ==========================
                                              'id'  1414199
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/PROGSOUP/Progsoup 12/693 beggars opera  - passacaglia.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  426
                                           'genre'  rock-cppex-progressive;set-pl-progspace
                                        'filesize'  17051648
                                           'mtime'  1620736309
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy PROGSOUP Progsoup 693 beggars opera passacaglia rock cppex progressive;set pl progspace
                                      'tag_artist'  Beggar's Opera
                                     'tag_release'  progsoup 12
                                       'tag_title'  Passacaglia
                                             'bpm'  142.008
                                    'search_title'  'passacaglia':1
                                   'search_artist'  'beggar':1 'beggars':3 'opera':4 's':2
                                  'search_release'  'progsoup':1
                                     'search_rest'  '693':3 'beggars':4 'classicprogpsy':1 'cppex':8 'opera':5 'passacaglia':6 'pl':13 'progressive':9,11 'progsoup':2 'progspace':14 'rock':7 'set':10,12
                                    'search_combo'  '693':9 'beggar':2B 'beggars':4B,10 'classicprogpsy':7 'cppex':14 'opera':5B,11 'passacaglia':1A,12 'pl':19 'progressive':15,17 'progsoup':6C,8 'progspace':20 'rock':13 's':3B 'set':16,18
                                    'tag_tracknum'  46
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['progressive rock', 'art rock', 'symphonic prog', 'rock', '70s']
                                        'tag_date'  1975
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620736309.0996327  (2021-05-11 14:31:49)
                             'size'  17051648