======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '424'
                                          'artist'  'Rex The Dog'
                                     'text_people'  ''
                                         'release'  'Rex The Dog'
                                           'title'  'Próximo Berlín (Rex The Dog Remix)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['dance', 'kompakt', 'electro', 'electronic', 'techno']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '122.215'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Rex The Dog'
'TBPM' (BPM (beats per minute))                     '122.215'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TIT2' (Title/songname/content description)         'Próximo Berlín (Rex The Dog Remix)'
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'Rex The Dog'
'TRCK' (Track number/Position in set)               '2'
'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'                                   ['dance', 'kompakt', 'electro', 'electronic', 'techno']
'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'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.08 dB'
'TXXX:replaygain_track_peak'                        '0.394061'

========================== row from database ==========================
                                              'id'  1361380
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/02. Mijo - Próximo Berlín (Rex The Dog Remix).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  424
                                           'genre'  electronic-unsorted
                                        'filesize'  16989691
                                           'mtime'  1621696710
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] 02. Mijo electronic unsorted
                                      'tag_artist'  Rex The Dog
                                     'tag_release'  Rex The Dog
                                       'tag_title'  Próximo Berlín (Rex The Dog Remix)
                                             'bpm'  122.215
                                    'search_title'  'berlin':3,4 'dog':8 'proximo':1,2 'remix':9,10 'rex':5,6 'the':7
                                   'search_artist'  'dog':3 'rex':1 'the':2
                                  'search_release'  'dog':3 'rex':1 'the':2
                                     'search_rest'  '00poprockelectronic':1 '02':7,8 'electronic':10 'files':5,6 'loose':3,4 'mijo':9 'unsorted':2
                                    'search_combo'  '00poprockelectronic':17 '02':23,24 'berlin':3A,4A 'dog':8A,13B,16C 'electronic':26 'files':21,22 'loose':19,20 'mijo':25 'proximo':1A,2A 'remix':9A,10A 'rex':5A,6A,11B,14C 'the':7A,12B,15C 'unsorted':18
                                    'tag_tracknum'  2
                                      '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-2', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['dance', 'kompakt', 'electro', 'electronic', 'techno']
                                        'tag_date'  
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1621696710.1614168  (2021-05-22 17:18:30)
                             'size'  16989691