======================== unified (from filesystem) ========================
                                         'bitrate'  '189.225'
                                        'duration'  '184'
                                          'artist'  'Pink Floyd'
                                     'text_people'  ''
                                         'release'  'The Piper At The Gates Of Dawn'
                                           'title'  'Take up Thy Stethoscope and Walk'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['psychedelic rock', 'rock', 'progressive rock', 'psychedelic', 'classic "
 "rock']")
                                     'discogstags'  "['rock', 'psychedelic rock', 'prog rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  '11'
                                            'date'  '1989'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive'
                                             'bpm'  '144.645'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'COMM:CDDB Disc ID:XXX'                             '8A09D30B'
'COMM:ID3v1 Comment:XXX'                            '8A09D30B'
'TALB' (Album/Movie/Show title)                     'The Piper At The Gates Of Dawn'
'TBPM' (BPM (beats per minute))                     '144.645'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-progressive'
'TDRC' (Recording time)                             '1989'
'TIT2' (Title/songname/content description)         'Take up Thy Stethoscope and Walk'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Pink Floyd'
'TRCK' (Track number/Position in set)               '6/11'
'TSSE' (Software/Hardware and settings used for encoding)  'Audiograbber 1.80, LAME dll 3.92, VBR 3, Stereo, High quality'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'psychedelic rock', 'prog rock']
'TXXX:lastfmtags'                                   ['psychedelic rock', 'rock', 'progressive rock', 'psychedelic', 'classic rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.66 dB'
'TXXX:replaygain_track_peak'                        '0.582559'

========================== row from database ==========================
                                              'id'  1456051
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Pink Floyd/The Piper At The Gates Of Dawn (1967)/Pink Floyd - Take Up Thy Stethoscope and Walk - 06.mp3
                                         'working'  None
                                         'bitrate'  189
                                    'duration_sec'  184
                                           'genre'  rock-cppex-progressive
                                        'filesize'  4359783
                                           'mtime'  1620737737
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy (1967) Up 06 rock cppex progressive
                                      'tag_artist'  Pink Floyd
                                     'tag_release'  The Piper At The Gates Of Dawn
                                       'tag_title'  Take up Thy Stethoscope and Walk
                                             'bpm'  144.645
                                    'search_title'  'and':5 'stethoscope':4 'take':1 'thy':3 'up':2 'walk':6
                                   'search_artist'  'floyd':2 'pink':1
                                  'search_release'  'at':3 'dawn':6 'gates':4 'of':5 'piper':2 'the':1
                                     'search_rest'  '1967':2,3 'classicprogpsy':1 'cppex':6 'progressive':7 'rock':5 'up':4
                                    'search_combo'  '1967':16,17 'and':5A 'at':11C 'classicprogpsy':15 'cppex':20 'dawn':14C 'floyd':8B 'gates':12C 'of':13C 'pink':7B 'piper':10C 'progressive':21 'rock':19 'stethoscope':4A 'take':1A 'the':9C 'thy':3A 'up':2A,18 'walk':6A
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['psychedelic rock', 'rock', 'progressive rock', 'psychedelic', 'classic rock']
                                        'tag_date'  1989
                                     'discogstags'  ['rock', 'psychedelic rock', 'prog rock']

============================== file details ==============================
                                           'mtime'  1620737736.5412834  (2021-05-11 14:55:36)
                             'size'  4359783