======================== unified (from filesystem) ========================
                                         'bitrate'  '184.681'
                                        'duration'  '470'
                                          'artist'  'Black Sun Empire'
                                     'text_people'  ''
                                         'release'  'Driving Insane-Retail 2CD'
                                           'title'  "Don't You"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-4']")
                                      'lastfmtags'  "['drum and bass', 'neurofunk', 'drum n bass', 'darkstep', 'dnb']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'electronic-th-breakbeat or dnb or jungle'
                                             'bpm'  '86.994'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Driving Insane-Retail 2CD'
'TBPM' (BPM (beats per minute))                     '86.994'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-breakbeat or dnb or jungle'
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         "Don't You"
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Black Sun Empire'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['drum and bass', 'neurofunk', 'drum n bass', 'darkstep', 'dnb']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '4'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.74 dB'
'TXXX:replaygain_track_peak'                        '0.322071'

========================== row from database ==========================
                                              'id'  1284318
                                            'path'  /data/Music/Bulk/00poprockelectronic/Black Sun Empire/Driving Insane/102-black_sun_empire_-_dont_you-boss.mp3
                                         'working'  None
                                         'bitrate'  184
                                    'duration_sec'  470
                                           'genre'  electronic-th-breakbeat or dnb or jungle
                                        'filesize'  10861724
                                           'mtime'  1621696759
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 102 black_sun_empire_ _dont_you boss electronic th breakbeat or dnb or jungle
                                      'tag_artist'  Black Sun Empire
                                     'tag_release'  Driving Insane-Retail 2CD
                                       'tag_title'  Don't You
                                             'bpm'  86.994
                                    'search_title'  'don':1 'dont':3 't':2 'you':4
                                   'search_artist'  'black':1 'empire':3 'sun':2
                                  'search_release'  '2cd':5 'driving':1 'insane':2 'insaneretail':4 'retail':3
                                     'search_rest'  '00poprockelectronic':1 '102':2 'black':3 'boss':8 'breakbeat':11 'dnb':13 'dont':6 'electronic':9 'empire':5 'jungle':14 'or':12 'sun':4 'th':10 'you':7
                                    'search_combo'  '00poprockelectronic':13 '102':14 '2cd':12C 'black':5B,15 'boss':20 'breakbeat':23 'dnb':25 'don':1A 'dont':3A,18 'driving':8C 'electronic':21 'empire':7B,17 'insane':9C 'insaneretail':11C 'jungle':26 'or':24 'retail':10C 'sun':6B,16 't':2A 'th':22 'you':4A,19
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-4', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-3']
                                      'lastfmtags'  ['drum and bass', 'neurofunk', 'drum n bass', 'darkstep', 'dnb']
                                        'tag_date'  2004
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1621696758.5219579  (2021-05-22 17:19:18)
                             'size'  10861724