======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '298'
                                          'artist'  'Faithless'
                                     'text_people'  ''
                                         'release'  'Chillout Annual 2002'
                                           'title'  'Evergreen (Dusted 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-2', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['dance', 'trip hop', 'electronica', 'electronic', 'house']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'electronic-trip hop or downtempo or acid jazz'
                                             'bpm'  '124.545'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Chillout Annual 2002'
'TBPM' (BPM (beats per minute))                     '124.545'
'TCON' (Content type, a.k.a. Genre)                 'electronic-trip hop or downtempo or acid jazz'
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         'Evergreen (Dusted Remix)'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Faithless'
'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'                                   ['dance', 'trip hop', 'electronica', 'electronic', 'house']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.49 dB'
'TXXX:replaygain_track_peak'                        '0.445690'

========================== row from database ==========================
                                              'id'  1456588
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/00mixable/Faithless/Chillout Annual 2002__Evergreen (Dusted Remix).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  298
                                           'genre'  electronic-trip hop or downtempo or acid jazz
                                        'filesize'  7163379
                                           'mtime'  1636910197
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat 00mixable 2002__Evergreen electronic trip hop or downtempo or acid jazz
                                      'tag_artist'  Faithless
                                     'tag_release'  Chillout Annual 2002
                                       'tag_title'  Evergreen (Dusted Remix)
                                             'bpm'  124.545
                                    'search_title'  'dusted':2,3 'evergreen':1 'remix':4,5
                                   'search_artist'  'faithless':1
                                  'search_release'  '2002':3 'annual':2 'chillout':1
                                     'search_rest'  '00mixable':5 '00poprockelectronic':1 '2002':6 'acid':13 'dance':3 'downtempo':12 'electronic':8 'evergreen':7 'generic':2 'hop':10 'jazz':14 'or':11 'trapbeat':4 'trip':9
                                    'search_combo'  '00mixable':14 '00poprockelectronic':10 '2002':9C,15 'acid':22 'annual':8C 'chillout':7C 'dance':12 'downtempo':21 'dusted':2A,3A 'electronic':17 'evergreen':1A,16 'faithless':6B 'generic':11 'hop':19 'jazz':23 'or':20 'remix':4A,5A 'trapbeat':13 'trip':18
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-2', 'q-syn-3', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['dance', 'trip hop', 'electronica', 'electronic', 'house']
                                        'tag_date'  2001
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636910197.3183475  (2021-11-14 18:16:37)
                             'size'  7163379