======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '464'
                                          'artist'  'Mono'
                                     'text_people'  ''
                                         'release'  'Best of Trip Hop 3'
                                           'title'  'Slimcea Girl (Aloof Remix)'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['instrumental', 'post rock', 'japanese', 'ambient']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-trip hop or downtempo or acid jazz'
                                             'bpm'  '99.960'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Best of Trip Hop 3'
'TBPM' (BPM (beats per minute))                     '99.960'
'TCON' (Content type, a.k.a. Genre)                 'electronic-trip hop or downtempo or acid jazz'
'TIT2' (Title/songname/content description)         'Slimcea Girl (Aloof Remix)'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'Mono'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '1'
'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:lastfmtags'                                   ['instrumental', 'post rock', 'japanese', 'ambient']
'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'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.37 dB'
'TXXX:replaygain_track_peak'                        '0.484529'

========================== row from database ==========================
                                              'id'  1354001
                                            'path'  /data/Music/Bulk/00poprockelectronic/00trip/Best of Trip Hop Vol. 1-4/Best of Trip Hop Vol.3 Presents by Maege/01_Album_1_.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  464
                                           'genre'  electronic-trip hop or downtempo or acid jazz
                                        'filesize'  11144436
                                           'mtime'  1636910300
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00trip Vol. 1 4 Vol.3 Presents by Maege 01_Album_1_ electronic trip hop or downtempo or acid jazz
                                      'tag_artist'  Mono
                                     'tag_release'  Best of Trip Hop 3
                                       'tag_title'  Slimcea Girl (Aloof Remix)
                                             'bpm'  99.96
                                    'search_title'  'aloof':3,4 'girl':2 'remix':5,6 'slimcea':1
                                   'search_artist'  'mono':1
                                  'search_release'  '3':5 'best':1 'hop':4 'of':2 'trip':3
                                     'search_rest'  '00poprockelectronic':1 '00trip':2 '01':13 '1':5,15 '3':8 '4':6 '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':13 '00trip':14 '01':25 '1':17,27 '3':12C,20 '4':18 'acid':33 'album':26 'aloof':3A,4A 'best':8C 'by':23 'downtempo':32 'electronic':28 'girl':2A 'hop':11C,30 'jazz':34 'maege':24 'mono':7B 'of':9C 'or':31 'presents':22 'remix':5A,6A 'slimcea':1A 'trip':10C,29 'vol':15,16,19 'vol3':21
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['instrumental', 'post rock', 'japanese', 'ambient']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636910300.3311932  (2021-11-14 18:18:20)
                             'size'  11144436