======================== unified (from filesystem) ========================
                                         'bitrate'  '179.327'
                                        'duration'  '335'
                                          'artist'  'Happy Days'
                                     'text_people'  ''
                                         'release'  'Clubhits 99 - Disc 1'
                                           'title'  'PJ'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', "
 "'Q-UNU-1', 'q-syn-3', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  ("['depressive black metal', 'black metal', 'suicidal black metal', 'dsbm', "
 "'depressive suicidal black metal']")
                                     'discogstags'  "['depressive black metal', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '09'
                                      'tracktotal'  ''
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-dance'
                                             'bpm'  '128.008'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Clubhits 99 - Disc 1'
'TBPM' (BPM (beats per minute))                     '128.008'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-dance'
'TDRC' (Recording time)                             '1999'
'TIT2' (Title/songname/content description)         'PJ'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Happy Days'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '09'
'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:discogstags'                                  ['depressive black metal', 'rock']
'TXXX:lastfmtags'                                   ['depressive black metal',
 'black metal',
 'suicidal black metal',
 'dsbm',
 'depressive suicidal black metal']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.82 dB'
'TXXX:replaygain_track_peak'                        '0.457399'

========================== row from database ==========================
                                              'id'  1419651
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/Clubhits 99 - Disc 1/Happy Days - 09 - PJ.mp3
                                         'working'  None
                                         'bitrate'  179
                                    'duration_sec'  335
                                           'genre'  electronic-generic or radio-dance
                                        'filesize'  7527895
                                           'mtime'  1637784292
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat 09 electronic generic or radio dance
                                      'tag_artist'  Happy Days
                                     'tag_release'  Clubhits 99 - Disc 1
                                       'tag_title'  PJ
                                             'bpm'  128.008
                                    'search_title'  'pj':1
                                   'search_artist'  'days':2 'happy':1
                                  'search_release'  '1':4 '99':2 'clubhits':1 'disc':3
                                     'search_rest'  '00poprockelectronic':1 'dance':3 'electronic':5 'generic':2 'or':6 'radio':7 'trapbeat':4
                                    'search_combo'  '00poprockelectronic':8 '1':7C '99':5C 'clubhits':4C 'dance':10 'days':3B 'disc':6C 'electronic':12 'generic':9 'happy':2B 'or':13 'pj':1A 'radio':14 'trapbeat':11
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', '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-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['depressive black metal', 'black metal', 'suicidal black metal', 'dsbm', 'depressive suicidal black metal']
                                        'tag_date'  1999
                                     'discogstags'  ['depressive black metal', 'rock']

============================== file details ==============================
                                           'mtime'  1637784291.6294918  (2021-11-24 21:04:51)
                             'size'  7527895