======================== unified (from filesystem) ========================
                                         'bitrate'  '152.589'
                                        'duration'  '129'
                                          'artist'  'Sarah Vaughan'
                                     'text_people'  ''
                                         'release'  'After Hours'
                                           'title'  'Easy to Love'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-JZFKS-3', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['vocal jazz', 'jazz vocal', 'jazz', 'female vocalists', 'blues']"
                                     'discogstags'  "['jazz', 'soul-jazz', 'modal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '11'
                                            'date'  '1961'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-vocal'
                                             'bpm'  '144.335'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'COMM:CDDB Disc ID:XXX'                             '9408300B'
'COMM:ID3v1 Comment:XXX'                            '9408300B'
'TALB' (Album/Movie/Show title)                     'After Hours'
'TBPM' (BPM (beats per minute))                     '144.335'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-vocal'
'TDRC' (Recording time)                             '1961'
'TIT2' (Title/songname/content description)         'Easy to Love'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Sarah Vaughan'
'TRCK' (Track number/Position in set)               '4/11'
'TSSE' (Software/Hardware and settings used for encoding)  'Audiograbber 1.80, LAME dll 3.89, VBR 4, Stereo, High quality'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['jazz', 'soul-jazz', 'modal']
'TXXX:lastfmtags'                                   ['vocal jazz', 'jazz vocal', 'jazz', 'female vocalists', 'blues']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.48 dB'
'TXXX:replaygain_track_peak'                        '0.690605'

========================== row from database ==========================
                                              'id'  777451
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Vaughan, Sarah/After Hours/Sarah Vaughan - Easy to Love - 04.mp3
                                         'working'  None
                                         'bitrate'  152
                                    'duration_sec'  129
                                           'genre'  prerock-jb-jazz-vocal
                                        'filesize'  2471298
                                           'mtime'  1620537099
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Vaughan, 04 prerock jb jazz vocal
                                      'tag_artist'  Sarah Vaughan
                                     'tag_release'  After Hours
                                       'tag_title'  Easy to Love
                                             'bpm'  144.335
                                    'search_title'  'easy':1 'love':3 'to':2
                                   'search_artist'  'sarah':1 'vaughan':2
                                  'search_release'  'after':1 'hours':2
                                     'search_rest'  'country':4 'exotica':2 'jazz':1 'jb':8 'oldies':3 'prerock':7 'vaughan':5,6 'vocal':9
                                    'search_combo'  'after':6C 'country':11 'easy':1A 'exotica':9 'hours':7C 'jazz':8 'jb':15 'love':3A 'oldies':10 'prerock':14 'sarah':4B 'to':2A 'vaughan':5B,12,13 'vocal':16
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['vocal jazz', 'jazz vocal', 'jazz', 'female vocalists', 'blues']
                                        'tag_date'  1961
                                     'discogstags'  ['jazz', 'soul-jazz', 'modal']

============================== file details ==============================
                                           'mtime'  1620537099.0936127  (2021-05-09 07:11:39)
                             'size'  2471298