======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '136'
                                          'artist'  'Barbarians'
                                     'text_people'  ''
                                         'release'  'Nuggets (disc 4)'
                                           'title'  'Are You A Boy Or Are You A Girl'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-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-1', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['power metal', 'viking metal', 'metal', 'rac', 'garage rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '30'
                                            'date'  '1965'
                                        'comments'  ''
                                           'genre'  'rock-cppex-psychedelic'
                                             'bpm'  '143.721'
                                             'key'  '9A'
                                        '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))                     '143.721'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-psychedelic'
'TDRC' (Recording time)                             '1965'
'TIT2' (Title/songname/content description)         'Are You A Boy Or Are You A Girl'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Barbarians'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '4/30'
'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:lastfmtags'                                   ['power metal', 'viking metal', 'metal', 'rac', 'garage rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.94 dB'
'TXXX:replaygain_track_peak'                        '0.385503'

========================== row from database ==========================
                                              'id'  1415593
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Sonics - Nuggets (sixties)/Nuggets (disc 4)/04 - Barbarians - 04 - Are You A Boy Or Are You A Girl.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  136
                                           'genre'  rock-cppex-psychedelic
                                        'filesize'  2190065
                                           'mtime'  1620737011
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy Sonics (sixties) 04 04 rock cppex psychedelic
                                      'tag_artist'  Barbarians
                                     'tag_release'  Nuggets (disc 4)
                                       'tag_title'  Are You A Boy Or Are You A Girl
                                             'bpm'  143.721
                                    'search_title'  'a':3 'are':1 'boy':4 'girl':6 'or':5 'you':2
                                   'search_artist'  'barbarians':1
                                  'search_release'  '4':4,5 'disc':2,3 'nuggets':1
                                     'search_rest'  'classicprogpsy':1 'cppex':6 'psychedelic':7 'rock':5 'sixties':3,4 'sonics':2
                                    'search_combo'  '4':11C,12C 'a':3A 'are':1A 'barbarians':7B 'boy':4A 'classicprogpsy':13 'cppex':18 'disc':9C,10C 'girl':6A 'nuggets':8C 'or':5A 'psychedelic':19 'rock':17 'sixties':15,16 'sonics':14 'you':2A
                                    'tag_tracknum'  4
                                      '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-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['power metal', 'viking metal', 'metal', 'rac', 'garage rock']
                                        'tag_date'  1965
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620737010.829676  (2021-05-11 14:43:30)
                             'size'  2190065