======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '374'
                                          'artist'  'The Chemical Brothers'
                                     'text_people'  ''
                                         'release'  'DMC Essential Club Hits: 125'
                                           'title'  'C.h.e.m.i.c.a.l (Original Mix)'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['dance', 'electronica', 'techno', 'electronic', 'big beat']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2016'
                                        'comments'  ''
                                           'genre'  'electronic-th-techno'
                                             'bpm'  '115.00'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'DMC Essential Club Hits: 125'
'TBPM' (BPM (beats per minute))                     '115.00'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno'
'TDRC' (Recording time)                             '2016'
'TIT2' (Title/songname/content description)         'C.h.e.m.i.c.a.l (Original Mix)'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Chemical Brothers'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['dance', 'electronica', 'techno', 'electronic', 'big beat']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.23 dB'
'TXXX:replaygain_track_peak'                        '0.468271'

========================== row from database ==========================
                                              'id'  1337658
                                            'path'  /data/Music/Bulk/00poprockelectronic/Marvin & Guy - 2015-2016/The Chemical Brothers - C.h.e.m.i.c.a.l (Original Mix).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  374
                                           'genre'  electronic-th-techno
                                        'filesize'  15222656
                                           'mtime'  1620571182
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Marvin & Guy 2015 2016 electronic techno
                                      'tag_artist'  The Chemical Brothers
                                     'tag_release'  DMC Essential Club Hits: 125
                                       'tag_title'  C.h.e.m.i.c.a.l (Original Mix)
                                             'bpm'  115.0
                                    'search_title'  'a':7 'c':1,6 'chemical':9 'e':3 'h':2 'i':5 'l':8 'm':4 'mix':12,13 'original':10,11
                                   'search_artist'  'brothers':3 'chemical':2 'the':1
                                  'search_release'  '125':6 'club':3 'dmc':1 'essential':2 'hits':4,5
                                     'search_rest'  '00poprockelectronic':1 '2015':4 '2016':5 'electronic':6 'guy':3 'marvin':2 'techno':7
                                    'search_combo'  '00poprockelectronic':23 '125':22C '2015':26 '2016':27 'a':7A 'brothers':16B 'c':1A,6A 'chemical':9A,15B 'club':19C 'dmc':17C 'e':3A 'electronic':28 'essential':18C 'guy':25 'h':2A 'hits':20C,21C 'i':5A 'l':8A 'm':4A 'marvin':24 'mix':12A,13A 'original':10A,11A 'techno':29 'the':14B
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-2', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['dance', 'electronica', 'techno', 'electronic', 'big beat']
                                        'tag_date'  2016
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620571182.12853  (2021-05-09 16:39:42)
                             'size'  15222656