======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '418'
                                          'artist'  'Tronik 100'
                                     'text_people'  ''
                                         'release'  'Night Fever EP'
                                           'title'  'Night Fever'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-3', "
 "'q-play-2', 'Q-JZFKS-1', 'Q-OLDST-3', 'q-chart-2', 'q-drums-4', 'q-other-1', "
 "'q-piano-1', 'q-vocals-1', 'Q-HHRNBTT-1', 'q-mixbeat-4', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  "['german', 'drum and bass', 'drum n bass', 'techstep']"
                                     'discogstags'  "['electronic', 'drum n bass']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'electronic-th-breakbeat or dnb or jungle'
                                             'bpm'  '86.4'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'POPM:\x01ÿþ3'                                      POPM(email='\x01ÿþ3', rating=153, count=1)
'TALB' (Album/Movie/Show title)                     'Night Fever EP'
'TBPM' (BPM (beats per minute))                     '86.4'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-breakbeat or dnb or jungle'
'TDRC' (Recording time)                             '2002'
'TIT2' (Title/songname/content description)         'Night Fever'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Tronik 100'
'TXXX:FMPS_Playcount'                               '1'
'TXXX:FMPS_Rating'                                  '0.6'
'TXXX:MP3GAIN_MINMAX'                               '125,189'
'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', 'drum n bass']
'TXXX:lastfmtags'                                   ['german', 'drum and bass', 'drum n bass', 'techstep']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '4'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.01 dB'
'TXXX:replaygain_track_peak'                        '0.573688'

========================== row from database ==========================
                                              'id'  1351966
                                            'path'  /data/Music/Bulk/00poprockelectronic/00dnb/Tronik 100/tronik 100 - night fever.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  418
                                           'genre'  electronic-th-breakbeat or dnb or jungle
                                        'filesize'  10055556
                                           'mtime'  1621696682
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00dnb tronik night fever electronic th breakbeat or dnb or jungle
                                      'tag_artist'  Tronik 100
                                     'tag_release'  Night Fever EP
                                       'tag_title'  Night Fever
                                             'bpm'  86.4
                                    'search_title'  'fever':2 'night':1
                                   'search_artist'  '100':2 'tronik':1
                                  'search_release'  'ep':3 'fever':2 'night':1
                                     'search_rest'  '00dnb':2 '00poprockelectronic':1 'breakbeat':8 'dnb':10 'electronic':6 'fever':5 'jungle':11 'night':4 'or':9 'th':7 'tronik':3
                                    'search_combo'  '00dnb':9 '00poprockelectronic':8 '100':4B 'breakbeat':15 'dnb':17 'electronic':13 'ep':7C 'fever':2A,6C,12 'jungle':18 'night':1A,5C,11 'or':16 'th':14 'tronik':3B,10
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-4', '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-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['german', 'drum and bass', 'drum n bass', 'techstep']
                                        'tag_date'  2002
                                     'discogstags'  ['electronic', 'drum n bass']

============================== file details ==============================
                                           'mtime'  1621696682.2285674  (2021-05-22 17:18:02)
                             'size'  10055556