======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '449'
                                          'artist'  'Rob Dougan'
                                     'text_people'  ''
                                         'release'  'Best of Trip Hop 3'
                                           'title'  'Clubbed to Death'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'Q-PLAY-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-vocals-1', 'q-mixbeat-2', "
 "'Q-PIANO-2']")
                                      'lastfmtags'  "['soundtrack', 'trip hop', 'electronica', 'electronic', 'chillout']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'electronic-trip hop or downtempo or acid jazz'
                                             'bpm'  '101.870'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Best of Trip Hop 3'
'TBPM' (BPM (beats per minute))                     '101.870'
'TCON' (Content type, a.k.a. Genre)                 'electronic-trip hop or downtempo or acid jazz'
'TDRC' (Recording time)                             '1999'
'TIT2' (Title/songname/content description)         'Clubbed to Death'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Rob Dougan'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'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-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['soundtrack', 'trip hop', 'electronica', 'electronic', 'chillout']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.38 dB'
'TXXX:replaygain_track_peak'                        '0.484315'

========================== row from database ==========================
                                              'id'  1345581
                                            'path'  /data/Music/Bulk/00poprockelectronic/00trip/Best of Trip Hop Vol. 1-4/Best of Trip Hop Vol.3 Presents by Maege/07_Album_9_.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  449
                                           'genre'  electronic-trip hop or downtempo or acid jazz
                                        'filesize'  10800236
                                           'mtime'  1636910301
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00trip Vol. 1 4 Vol.3 Presents by Maege 07_Album_9_ electronic trip hop or downtempo or acid jazz
                                      'tag_artist'  Rob Dougan
                                     'tag_release'  Best of Trip Hop 3
                                       'tag_title'  Clubbed to Death
                                             'bpm'  101.87
                                    'search_title'  'clubbed':1 'death':3 'to':2
                                   'search_artist'  'dougan':2 'rob':1
                                  'search_release'  '3':5 'best':1 'hop':4 'of':2 'trip':3
                                     'search_rest'  '00poprockelectronic':1 '00trip':2 '07':13 '1':5 '3':8 '4':6 '9':15 'acid':21 'album':14 'by':11 'downtempo':20 'electronic':16 'hop':18 'jazz':22 'maege':12 'or':19 'presents':10 'trip':17 'vol':3,4,7 'vol3':9
                                    'search_combo'  '00poprockelectronic':11 '00trip':12 '07':23 '1':15 '3':10C,18 '4':16 '9':25 'acid':31 'album':24 'best':6C 'by':21 'clubbed':1A 'death':3A 'dougan':5B 'downtempo':30 'electronic':26 'hop':9C,28 'jazz':32 'maege':22 'of':7C 'or':29 'presents':20 'rob':4B 'to':2A 'trip':8C,27 'vol':13,14,17 'vol3':19
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-mixbeat-2', 'Q-PIANO-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['soundtrack', 'trip hop', 'electronica', 'electronic', 'chillout']
                                        'tag_date'  1999
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636910300.566155  (2021-11-14 18:18:20)
                             'size'  10800236