======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '475'
                                          'artist'  'Andre Kronert'
                                     'text_people'  ''
                                         'release'  'maleta  acid rave'
                                           'title'  'Dirty Old Man (Regal Remix)'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-GRIT-3', 'q-bass-1', 'Q-JZFKS-1', 'Q-OLDST-3', "
 "'q-drums-4', 'q-other-1', '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-3']")
                                      'lastfmtags'  "['minimal', 'electronic', 'techno', 'tech house']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2016'
                                        'comments'  ''
                                           'genre'  'electronic-th-techno-acid'
                                             'bpm'  '130.0'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'maleta  acid rave'
'TBPM' (BPM (beats per minute))                     '130.0'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno-acid'
'TDRC' (Recording time)                             '2016-06-16'
'TIT2' (Title/songname/content description)         'Dirty Old Man (Regal Remix)'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Andre Kronert'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Odd Even'
'TSRC' (ISRC (international standard recording code))  'Dech61600008'
'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'                                    '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-SYN'                                        '4'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['minimal', 'electronic', 'techno', 'tech house']
'TXXX:q-bass'                                       '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.08 dB'
'TXXX:replaygain_track_peak'                        '0.397750'

========================== row from database ==========================
                                              'id'  1484832
                                            'path'  /data/Music/Bulk/00poprockelectronic/maleta__ acid rave/andre kronert - dirty old man (regal remix).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  475
                                           'genre'  electronic-th-techno-acid
                                        'filesize'  19043083
                                           'mtime'  1620573738
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic maleta__ andre kronert dirty old man (regal remix) electronic th techno
                                      'tag_artist'  Andre Kronert
                                     'tag_release'  maleta  acid rave
                                       'tag_title'  Dirty Old Man (Regal Remix)
                                             'bpm'  130.0
                                    'search_title'  'dirty':1 'man':3 'old':2 'regal':4,5 'remix':6,7
                                   'search_artist'  'andre':1 'kronert':2
                                  'search_release'  'acid':2 'maleta':1 'rave':3
                                     'search_rest'  '00poprockelectronic':1 'andre':3 'dirty':5 'electronic':12 'kronert':4 'maleta':2 'man':7 'old':6 'regal':8,9 'remix':10,11 'techno':14 'th':13
                                    'search_combo'  '00poprockelectronic':13 'acid':11C 'andre':8B,15 'dirty':1A,17 'electronic':24 'kronert':9B,16 'maleta':10C,14 'man':3A,19 'old':2A,18 'rave':12C 'regal':4A,5A,20,21 'remix':6A,7A,22,23 'techno':26 'th':25
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-3', 'Q-OLDST-3', 'Q-GRIT-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-CHART-2', 'q-drums-4', 'Q-SYN-4', 'q-other-1', 'Q-BUSY-3', 'Q-HAP-2', 'Q-PLAY-2', 'q-bass-1']
                                      'lastfmtags'  ['minimal', 'electronic', 'techno', 'tech house']
                                        'tag_date'  2016
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620573737.9859092  (2021-05-09 17:22:17)
                             'size'  19043083