======================== unified (from filesystem) ========================
                                         'bitrate'  '171.633'
                                        'duration'  '660'
                                          'artist'  'Grant Green'
                                     'text_people'  ''
                                         'release'  'Blue Break Beats'
                                           'title'  'Sookie Sookie'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-4', 'q-busy-2', 'q-grit-1', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['guitar', 'fip', 'jazz', 'jazz guitar', 'groove', 'funk']"
                                     'discogstags'  "['jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '125.315'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Blue Break Beats'
'TBPM' (BPM (beats per minute))                     '125.315'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TIT2' (Title/songname/content description)         'Sookie Sookie'
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'Grant Green'
'TRCK' (Track number/Position in set)               '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'jazz'
'TXXX:lastfmtags'                                   ['guitar', 'fip', 'jazz', 'jazz guitar', 'groove', 'funk']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.44 dB'
'TXXX:replaygain_track_peak'                        '0.659873'

========================== row from database ==========================
                                              'id'  790451
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Blue Break Beats/Grant Green - Sookie Sookie.mp3
                                         'working'  None
                                         'bitrate'  171
                                    'duration_sec'  660
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  14192911
                                           'mtime'  1620528286
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country prerock jb jazz unsorted
                                      'tag_artist'  Grant Green
                                     'tag_release'  Blue Break Beats
                                       'tag_title'  Sookie Sookie
                                             'bpm'  125.315
                                    'search_title'  'sookie':1
                                   'search_artist'  'grant':1 'green':2
                                  'search_release'  'beats':3 'blue':1 'break':2
                                     'search_rest'  'country':4 'exotica':2 'jazz':1 'jb':6 'oldies':3 'prerock':5 'unsorted':7
                                    'search_combo'  'beats':6C 'blue':4C 'break':5C 'country':10 'exotica':8 'grant':2B 'green':3B 'jazz':7 'jb':12 'oldies':9 'prerock':11 'sookie':1A 'unsorted':13
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-4', 'q-syn-1', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['guitar', 'fip', 'jazz', 'jazz guitar', 'groove', 'funk']
                                        'tag_date'  
                                     'discogstags'  ['jazz']

============================== file details ==============================
                                           'mtime'  1620528286.3629093  (2021-05-09 04:44:46)
                             'size'  14192911