======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '271'
                                          'artist'  'Fooz'
                                     'text_people'  ''
                                         'release'  'Progsoup 48'
                                           'title'  'Earthwind'
                                           '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-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['psychedelic rock', 'stoner rock', 'space rock', 'rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '51'
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive'
                                             'bpm'  '120.471'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'PRIV:AverageLevel:&\x1e\x00\x00'                   PRIV(owner='AverageLevel', data=b'&\x1e\x00\x00')
'PRIV:PeakValue:ΓΏ\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xff\x7f\x00\x00')
'TALB' (Album/Movie/Show title)                     'Progsoup 48'
'TBPM' (BPM (beats per minute))                     '120.471'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-progressive'
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         'Earthwind'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Fooz'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '51'
'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'                                   ['psychedelic rock', 'stoner rock', 'space rock', 'rock']
'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'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.31 dB'
'TXXX:replaygain_track_peak'                        '0.381339'

========================== row from database ==========================
                                              'id'  1410952
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/PROGSOUP/progsoup 48/2754 fooz - earthwind.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  271
                                           'genre'  rock-cppex-progressive
                                        'filesize'  6507394
                                           'mtime'  1620737503
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy PROGSOUP progsoup 2754 fooz earthwind rock cppex progressive
                                      'tag_artist'  Fooz
                                     'tag_release'  Progsoup 48
                                       'tag_title'  Earthwind
                                             'bpm'  120.471
                                    'search_title'  'earthwind':1
                                   'search_artist'  'fooz':1
                                  'search_release'  '48':2 'progsoup':1
                                     'search_rest'  '2754':3 'classicprogpsy':1 'cppex':7 'earthwind':5 'fooz':4 'progressive':8 'progsoup':2 'rock':6
                                    'search_combo'  '2754':7 '48':4C 'classicprogpsy':5 'cppex':11 'earthwind':1A,9 'fooz':2B,8 'progressive':12 'progsoup':3C,6 'rock':10
                                    'tag_tracknum'  51
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['psychedelic rock', 'stoner rock', 'space rock', 'rock']
                                        'tag_date'  2001
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620737502.6667702  (2021-05-11 14:51:42)
                             'size'  6507394