======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '160'
                                          'artist'  'Sonics'
                                     'text_people'  ''
                                         'release'  'Nuggets (disc 4)'
                                           'title'  'Witch'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'q-syn-2', 'q-bass-2', 'q-busy-3', "
 "'q-grit-2', 'q-play-3', 'Q-OLDST-2', 'q-chart-1', 'q-drums-2', 'q-other-3', "
 "'q-piano-1', 'q-vocals-3', 'Q-HHRNBTT-1', 'q-mixbeat-1', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  "['garage rock', '60s', 'proto-punk', 'garage', 'rock']"
                                     'discogstags'  "['pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '16'
                                      'tracktotal'  '30'
                                            'date'  '1965'
                                        'comments'  ''
                                           'genre'  'rock-cppex-psychedelic'
                                             'bpm'  '143.112'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'COMM:CDDB Disc ID:XXX'                             'C4124A1E'
'COMM:ID3v1 Comment:XXX'                            'C4124A1E'
'TALB' (Album/Movie/Show title)                     'Nuggets (disc 4)'
'TBPM' (BPM (beats per minute))                     '143.112'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-psychedelic'
'TDRC' (Recording time)                             '1965'
'TIT2' (Title/songname/content description)         'Witch'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Sonics'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '16/30'
'TSSE' (Software/Hardware and settings used for encoding)  'Audiograbber 1.80, LAME dll 3.89, 128 Kbit/s, Joint Stereo, Normal quality'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'pop'
'TXXX:lastfmtags'                                   ['garage rock', '60s', 'proto-punk', 'garage', 'rock']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'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'                        '-0.50 dB'
'TXXX:replaygain_track_peak'                        '0.377286'

========================== row from database ==========================
                                              'id'  1410266
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Sonics - Nuggets (sixties)/Nuggets (disc 4)/16 - Sonics - 16 - Witch.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  160
                                           'genre'  rock-cppex-psychedelic
                                        'filesize'  2562438
                                           'mtime'  1620737017
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy (sixties) 16 16 rock cppex psychedelic
                                      'tag_artist'  Sonics
                                     'tag_release'  Nuggets (disc 4)
                                       'tag_title'  Witch
                                             'bpm'  143.112
                                    'search_title'  'witch':1
                                   'search_artist'  'sonics':1
                                  'search_release'  '4':4,5 'disc':2,3 'nuggets':1
                                     'search_rest'  'classicprogpsy':1 'cppex':5 'psychedelic':6 'rock':4 'sixties':2,3
                                    'search_combo'  '4':6C,7C 'classicprogpsy':8 'cppex':12 'disc':4C,5C 'nuggets':3C 'psychedelic':13 'rock':11 'sixties':9,10 'sonics':2B 'witch':1A
                                    'tag_tracknum'  16
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['garage rock', '60s', 'proto-punk', 'garage', 'rock']
                                        'tag_date'  1965
                                     'discogstags'  ['pop']

============================== file details ==============================
                                           'mtime'  1620737017.030459  (2021-05-11 14:43:37)
                             'size'  2562438