======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '246'
                                          'artist'  'Billy Cobham'
                                     'text_people'  ''
                                         'release'  'Progsoup 40'
                                           'title'  'Panhandler'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['fip', 'jazz fusion', 'jazz', 'fusion', 'drums', 'funk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '20'
                                      'tracktotal'  ''
                                            'date'  '1975'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive'
                                             'bpm'  '122.215'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Progsoup 40'
'TBPM' (BPM (beats per minute))                     '122.215'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-progressive'
'TDRC' (Recording time)                             '1975'
'TIT2' (Title/songname/content description)         'Panhandler'
'TKEY' (Initial key)                                '6A'
'TLEN' (Length)                                     '246491'
'TPE1' (Lead performer(s)/Soloist(s))               'Billy Cobham'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '20'
'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:lastfmtags'                                   ['fip', 'jazz fusion', 'jazz', 'fusion', 'drums', 'funk']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.25 dB'
'TXXX:replaygain_track_peak'                        '0.601652'

========================== row from database ==========================
                                              'id'  1412206
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/PROGSOUP/progsoup 40/2320 billy cobham - Panhandler.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  246
                                           'genre'  rock-cppex-progressive
                                        'filesize'  9869901
                                           'mtime'  1620737352
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy PROGSOUP progsoup 2320 billy cobham rock cppex progressive
                                      'tag_artist'  Billy Cobham
                                     'tag_release'  Progsoup 40
                                       'tag_title'  Panhandler
                                             'bpm'  122.215
                                    'search_title'  'panhandler':1
                                   'search_artist'  'billy':1 'cobham':2
                                  'search_release'  '40':2 'progsoup':1
                                     'search_rest'  '2320':3 'billy':4 'classicprogpsy':1 'cobham':5 'cppex':7 'progressive':8 'progsoup':2 'rock':6
                                    'search_combo'  '2320':8 '40':5C 'billy':2B,9 'classicprogpsy':6 'cobham':3B,10 'cppex':12 'panhandler':1A 'progressive':13 'progsoup':4C,7 'rock':11
                                    'tag_tracknum'  20
                                      'num_images'  1
                                             'key'  6A
                                           '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-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['fip', 'jazz fusion', 'jazz', 'fusion', 'drums', 'funk']
                                        'tag_date'  1975
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620737352.3865314  (2021-05-11 14:49:12)
                             'size'  9869901