======================== unified (from filesystem) ========================
                                         'bitrate'  '320.008'
                                        'duration'  '405'
                                          'artist'  'gui boratto'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Notations'
                                           'quals'  ("['Q-MIXBEAT-3', 'Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-JZFKS-1', 'Q-OLDST-3', 'q-syn-4', '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']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-th-techno-minimal or deephouse;set-pl-mor'
                                             'bpm'  '124.852'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '124.852'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-th-techno-minimal or deephouse', 'set-pl-mor']
'TIT2' (Title/songname/content description)         'Notations'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'gui boratto'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.48 dB'
'TXXX:replaygain_track_peak'                        '0.588477'

========================== row from database ==========================
                                              'id'  1388736
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/gui boratto - notations - original mix 4clubbers.pl up by iks de.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  405
                                           'genre'  electronic-th-techno-minimal or deephouse;set-pl-mor
                                        'filesize'  11743232
                                           'mtime'  1621085284
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] notations original mix 4clubbers.pl up by iks de electronic th techno minimal deephouse;set pl mor
                                      'tag_artist'  gui boratto
                                     'tag_release'  None
                                       'tag_title'  Notations
                                             'bpm'  124.852
                                    'search_title'  'notations':1
                                   'search_artist'  'boratto':2 'gui':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 '4clubbers':10 '4clubberspl':12 'by':14 'de':16 'deephouse':21,23 'electronic':17 'files':5,6 'iks':15 'loose':3,4 'minimal':20 'mix':9 'mor':26 'notations':7 'original':8 'pl':11,25 'set':22,24 'techno':19 'th':18 'unsorted':2 'up':13
                                    'search_combo'  '00poprockelectronic':4 '4clubbers':13 '4clubberspl':15 'boratto':3B 'by':17 'de':19 'deephouse':24,26 'electronic':20 'files':8,9 'gui':2B 'iks':18 'loose':6,7 'minimal':23 'mix':12 'mor':29 'notations':1A,10 'original':11 'pl':14,28 'set':25,27 'techno':22 'th':21 'unsorted':5 'up':16
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  5A
                                           '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-4', 'q-chart-2', 'q-other-1', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['minimal techno', 'kompakt', 'techno', 'electronic', 'minimal']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621085284.1151276  (2021-05-15 15:28:04)
                             'size'  11743232