======================== unified (from filesystem) ========================
                                         'bitrate'  '197.534'
                                        'duration'  '253'
                                          'artist'  'Orsten'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Adagio Sostenuto'
                                           'quals'  ("['Q-SYN-3', 'Q-HAP-3', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-JZFKS-1', 'Q-OLDST-3', 'Q-PLAY-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', "
 "'Q-PIANO-2', 'q-chart-2', 'q-drums-4', 'q-other-3', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  ("['atmospheric drum and bass', 'downtempo', 'lounge', 'chill out', "
 "'electronic']")
                                     'discogstags'  "['electronic', 'deep house']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2009'
                                        'comments'  ''
                                           'genre'  'electronic-th-breakbeat or dnb or jungle'
                                             'bpm'  '107.095'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '107.095'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-breakbeat or dnb or jungle'
'TDRC' (Recording time)                             '2009'
'TIT2' (Title/songname/content description)         'Adagio Sostenuto'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'Orsten'
'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-SYN'                                        '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic', 'deep house']
'TXXX:lastfmtags'                                   ['atmospheric drum and bass', 'downtempo', 'lounge', 'chill out', 'electronic']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.09 dB'
'TXXX:replaygain_track_peak'                        '0.448094'

========================== row from database ==========================
                                              'id'  1322684
                                            'path'  /data/Music/Bulk/00poprockelectronic/Orsten/Orsten-Adagio-Sostenuto.mp3
                                         'working'  None
                                         'bitrate'  197
                                    'duration_sec'  253
                                           'genre'  electronic-th-breakbeat or dnb or jungle
                                        'filesize'  6255255
                                           'mtime'  1639511348
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic electronic th breakbeat or dnb or jungle
                                      'tag_artist'  Orsten
                                     'tag_release'  None
                                       'tag_title'  Adagio Sostenuto
                                             'bpm'  107.095
                                    'search_title'  'adagio':1 'sostenuto':2
                                   'search_artist'  'orsten':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'breakbeat':4 'dnb':6 'electronic':2 'jungle':7 'or':5 'th':3
                                    'search_combo'  '00poprockelectronic':4 'adagio':1A 'breakbeat':7 'dnb':9 'electronic':5 'jungle':10 'or':8 'orsten':3B 'sostenuto':2A 'th':6
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  11B
                                           '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-4', 'Q-SYN-3', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['atmospheric drum and bass', 'downtempo', 'lounge', 'chill out', 'electronic']
                                        'tag_date'  2009
                                     'discogstags'  ['electronic', 'deep house']

============================== file details ==============================
                                           'mtime'  1639511347.7068136  (2021-12-14 20:49:07)
                             'size'  6255255