======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '178'
                                          'artist'  'Scooter'
                                     'text_people'  ''
                                         'release'  'Our Happy Hardcore'
                                           'title'  'Last Minute'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-OLDST-3', "
 "'Q-UNU-1', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['dance', 'trance', 'techno', 'electronic', 'happy hardcore']"
                                     'discogstags'  "['electronic', 'happy hardcore', 'hard trance', 'hardcore']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '1996'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-dance'
                                             'bpm'  '92.602'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Our Happy Hardcore'
'TBPM' (BPM (beats per minute))                     '92.602'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-dance'
'TDRC' (Recording time)                             '1996'
'TIT2' (Title/songname/content description)         'Last Minute'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Scooter'
'TRCK' (Track number/Position in set)               '4'
'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', 'happy hardcore', 'hard trance', 'hardcore']
'TXXX:lastfmtags'                                   ['dance', 'trance', 'techno', 'electronic', 'happy hardcore']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'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'                        '-1.28 dB'
'TXXX:replaygain_track_peak'                        '0.523718'

========================== row from database ==========================
                                              'id'  1346909
                                            'path'  /data/Music/Bulk/00poprockelectronic/Scooter/Scooter - Our Happy Hardcore (Limited Ed.)/cifs3fc1.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  178
                                           'genre'  electronic-generic or radio-dance
                                        'filesize'  2859584
                                           'mtime'  1621696559
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic (Limited Ed.) cifs3fc1 electronic generic radio dance
                                      'tag_artist'  Scooter
                                     'tag_release'  Our Happy Hardcore
                                       'tag_title'  Last Minute
                                             'bpm'  92.602
                                    'search_title'  'last':1 'minute':2
                                   'search_artist'  'scooter':1
                                  'search_release'  'happy':2 'hardcore':3 'our':1
                                     'search_rest'  '00poprockelectronic':1 'cifs3fc1':6 'dance':10 'ed':4,5 'electronic':7 'generic':8 'limited':2,3 'radio':9
                                    'search_combo'  '00poprockelectronic':7 'cifs3fc1':12 'dance':16 'ed':10,11 'electronic':13 'generic':14 'happy':5C 'hardcore':6C 'last':1A 'limited':8,9 'minute':2A 'our':4C 'radio':15 'scooter':3B
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  8A
                                           '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-3', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['dance', 'trance', 'techno', 'electronic', 'happy hardcore']
                                        'tag_date'  1996
                                     'discogstags'  ['electronic', 'happy hardcore', 'hard trance', 'hardcore']

============================== file details ==============================
                                           'mtime'  1621696558.7992215  (2021-05-22 17:15:58)
                             'size'  2859584