======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '425'
                                          'artist'  'Lustral'
                                     'text_people'  ''
                                         'release'  'Uplifting Progressive Trance'
                                           'title'  'Broken (Dousk Remix)'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', '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-1', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  ("['vocal trance', 'electronica', 'trance', 'progressive trance', "
 "'electronic', 'chillout']")
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '01'
                                      'tracktotal'  ''
                                            'date'  '2007'
                                        'comments'  ''
                                           'genre'  'electronic-th-trance'
                                             'bpm'  '128.0'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Uplifting Progressive Trance'
'TBPM' (BPM (beats per minute))                     '128.0'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-trance'
'TDRC' (Recording time)                             '2007'
'TIT2' (Title/songname/content description)         'Broken (Dousk Remix)'
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'Lustral'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '01'
'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'                                   ['vocal trance',
 'electronica',
 'trance',
 'progressive trance',
 'electronic',
 'chillout']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'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'                                     '1'
'TXXX:replaygain_track_gain'                        '+8.46 dB'
'TXXX:replaygain_track_peak'                        '0.178749'

========================== row from database ==========================
                                              'id'  729579
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/tribal electro ~ classic progressive house ~ uplifting progressive trance/Lustral - Broken (Dousk Remix).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  425
                                           'genre'  electronic-th-trance
                                        'filesize'  17009812
                                           'mtime'  1621509021
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm tribal electro ~ classic progressive house ~ uplifting progressive trance electronic th trance
                                      'tag_artist'  Lustral
                                     'tag_release'  Uplifting Progressive Trance
                                       'tag_title'  Broken (Dousk Remix)
                                             'bpm'  128.0
                                    'search_title'  'broken':1 'dousk':2,3 'remix':4,5
                                   'search_artist'  'lustral':1
                                  'search_release'  'progressive':2 'trance':3 'uplifting':1
                                     'search_rest'  'classic':3 'electro':2 'electronic':8 'house':5 'progressive':4 'th':9 'trance':7 'tribal':1 'uplifting':6
                                    'search_combo'  'broken':1A 'classic':12 'dousk':2A,3A 'electro':11 'electronic':17 'house':14 'lustral':6B 'progressive':8C,13 'remix':4A,5A 'th':18 'trance':9C,16 'tribal':10 'uplifting':7C,15
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['vocal trance', 'electronica', 'trance', 'progressive trance', 'electronic', 'chillout']
                                        'tag_date'  2007
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1621509021.3727388  (2021-05-20 13:10:21)
                             'size'  17009812