======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '172'
                                          'artist'  'Jurgen Eckloff'
                                     'text_people'  ''
                                         'release'  'Natura Magica - The Power Of Nature [CS]'
                                           'title'  'Nature -Of Course...'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', "
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 "'q-chart-1', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
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                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  'B6'
                                      'tracktotal'  ''
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'electronic'
                                             'bpm'  '139.6'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Natura Magica - The Power Of Nature [CS]'
'TBPM' (BPM (beats per minute))                     '139.6'
'TCON' (Content type, a.k.a. Genre)                 'electronic'
'TDRC' (Recording time)                             '1999'
'TIT2' (Title/songname/content description)         'Nature -Of Course...'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Jurgen Eckloff'
'TPE2' (Band/orchestra/accompaniment)               'Jurgen Eckloff'
'TRCK' (Track number/Position in set)               'B6'
'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:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.87 dB'
'TXXX:replaygain_track_peak'                        '0.966613'

========================== row from database ==========================
                                              'id'  1374796
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/No - natura magica - the power of nature [1999 cs]/B6 Jurgen Eckloff - Nature - Of Course....mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  172
                                           'genre'  electronic
                                        'filesize'  5523404
                                           'mtime'  1636912665
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm No natura magica the power nature [1999 cs] B6 electronic
                                      'tag_artist'  Jurgen Eckloff
                                     'tag_release'  Natura Magica - The Power Of Nature [CS]
                                       'tag_title'  Nature -Of Course...
                                             'bpm'  139.6
                                    'search_title'  'course':4,5 'nature':1 'of':2,3
                                   'search_artist'  'eckloff':2 'jurgen':1
                                  'search_release'  'cs':7,8 'magica':2 'natura':1 'nature':6 'of':5 'power':4 'the':3
                                     'search_rest'  '1999':7,8 'b6':11 'cs':9,10 'electronic':12 'magica':3 'natura':2 'nature':6 'no':1 'power':5 'the':4
                                    'search_combo'  '1999':22,23 'b6':26 'course':4A,5A 'cs':14C,15C,24,25 'eckloff':7B 'electronic':27 'jurgen':6B 'magica':9C,18 'natura':8C,17 'nature':1A,13C,21 'no':16 'of':2A,3A,12C 'power':11C,20 'the':10C,19
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1999
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636912664.5765562  (2021-11-14 18:57:44)
                             'size'  5523404