======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '338'
                                          'artist'  'Acid Device'
                                     'text_people'  ''
                                         'release'  'maleta  acid rave'
                                           'title'  'Accent'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-GRIT-3', 'q-bass-1', 'Q-JZFKS-1', 'Q-OLDST-3', "
 "'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-1', 'Q-SYN-4', 'Q-BUSY-3', 'Q-PLAY-2', 'Q-CHART-2', "
 "'Q-MIXBEAT-4']")
                                      'lastfmtags'  "['oldskool acid', 'germany', 'acid', 'fast']"
                                     'discogstags'  "['hardcore', 'acid', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '17'
                                      'tracktotal'  ''
                                            'date'  '1996'
                                        'comments'  ''
                                           'genre'  'electronic-th-techno-acid'
                                             'bpm'  '146.0'
                                             'key'  '4B'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         'Byble'
'TALB' (Album/Movie/Show title)                     'maleta  acid rave'
'TBPM' (BPM (beats per minute))                     '146.0'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno-acid'
'TDRC' (Recording time)                             '1996'
'TENC' (Encoded by)                                 'LAME 3.96.1'
'TIT2' (Title/songname/content description)         'Accent'
'TKEY' (Initial key)                                '4B'
'TLAN' (Language(s))                                'English'
'TPE1' (Lead performer(s)/Soloist(s))               'Acid Device'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '17'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '3'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '4'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-SYN'                                        '4'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['hardcore', 'acid', 'electronic']
'TXXX:lastfmtags'                                   ['oldskool acid', 'germany', 'acid', 'fast']
'TXXX:q-bass'                                       '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.54 dB'
'TXXX:replaygain_track_peak'                        '0.449745'

========================== row from database ==========================
                                              'id'  1484107
                                            'path'  /data/Music/Bulk/00poprockelectronic/maleta__ acid rave/acid device - accent-byble.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  338
                                           'genre'  electronic-th-techno-acid
                                        'filesize'  13536568
                                           'mtime'  1620573732
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic maleta__ device accent byble electronic th techno
                                      'tag_artist'  Acid Device
                                     'tag_release'  maleta  acid rave
                                       'tag_title'  Accent
                                             'bpm'  146.0
                                    'search_title'  'accent':1
                                   'search_artist'  'acid':1 'device':2
                                  'search_release'  'acid':2 'maleta':1 'rave':3
                                     'search_rest'  '00poprockelectronic':1 'accent':4 'byble':5 'device':3 'electronic':6 'maleta':2 'techno':8 'th':7
                                    'search_combo'  '00poprockelectronic':7 'accent':1A,10 'acid':2B,5C 'byble':11 'device':3B,9 'electronic':12 'maleta':4C,8 'rave':6C 'techno':14 'th':13
                                    'tag_tracknum'  17
                                      'num_images'  0
                                             'key'  4B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-4', 'Q-OLDST-3', 'Q-GRIT-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-CHART-2', 'q-drums-4', 'Q-PLAY-2', 'Q-SYN-4', 'Q-BUSY-3', 'q-other-2', 'Q-HAP-2', 'q-bass-1']
                                      'lastfmtags'  ['oldskool acid', 'germany', 'acid', 'fast']
                                        'tag_date'  1996
                                     'discogstags'  ['hardcore', 'acid', 'electronic']

============================== file details ==============================
                                           'mtime'  1620573732.4672358  (2021-05-09 17:22:12)
                             'size'  13536568