======================== unified (from filesystem) ========================
                                         'bitrate'  '194.365'
                                        'duration'  '387'
                                          'artist'  'Lamb'
                                     'text_people'  ''
                                         'release'  'Best Kept Secrets'
                                           'title'  'Gorecki'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-HHRNBTT-2', "
 "'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-4', "
 "'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-2']")
                                      'lastfmtags'  "['electronica', 'electronic', 'female vocalists', 'trip hop', 'chillout']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '106.1'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Best Kept Secrets'
'TBPM' (BPM (beats per minute))                     '106.1'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TIT2' (Title/songname/content description)         'Gorecki'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Lamb'
'TRCK' (Track number/Position in set)               '4'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['electronica', 'electronic', 'female vocalists', 'trip hop', 'chillout']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.10 dB'
'TXXX:replaygain_track_peak'                        '0.450217'

========================== row from database ==========================
                                              'id'  1330464
                                            'path'  /data/Music/Bulk/00poprockelectronic/00trip/Lamb/Best Kept Secrets/mp3/Lamb - Best Kept Secrets - The Best Of Lamb 1996-2004 - 04 - Gorecki.mp3
                                         'working'  None
                                         'bitrate'  194
                                    'duration_sec'  387
                                           'genre'  electronic-unsorted
                                        'filesize'  9428094
                                           'mtime'  1620564769
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00trip mp3 The Of 1996 2004 04 electronic unsorted
                                      'tag_artist'  Lamb
                                     'tag_release'  Best Kept Secrets
                                       'tag_title'  Gorecki
                                             'bpm'  106.1
                                    'search_title'  'gorecki':1
                                   'search_artist'  'lamb':1
                                  'search_release'  'best':1 'kept':2 'secrets':3
                                     'search_rest'  '00poprockelectronic':1 '00trip':2 '1996':6 '2004':7 'electronic':8 'mp3':3 'of':5 'the':4 'unsorted':9
                                    'search_combo'  '00poprockelectronic':6 '00trip':7 '1996':11 '2004':12 'best':3C 'electronic':13 'gorecki':1A 'kept':4C 'lamb':2B 'mp3':8 'of':10 'secrets':5C 'the':9 'unsorted':14
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-4', 'q-other-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['electronica', 'electronic', 'female vocalists', 'trip hop', 'chillout']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620564768.822044  (2021-05-09 14:52:48)
                             'size'  9428094