======================== unified (from filesystem) ========================
                                         'bitrate'  '245.161'
                                        'duration'  '168'
                                          'artist'  'Edgar Blanchard & the Gondoliers'
                                     'text_people'  ''
                                         'release'  '216instros'
                                           'title'  'Blues Cha-Cha'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'q-syn-1', 'q-bass-2', 'q-busy-2', 'q-grit-1', "
 "'q-play-2', 'Q-JZFKS-2', 'Q-OLDST-1', 'q-chart-2', 'q-drums-4', 'q-other-3', "
 "'q-piano-1', 'q-vocals-1', 'Q-HHRNBTT-1', 'q-mixbeat-1', 'Q-LOCALNESS-2']")
                                      'lastfmtags'  "['blues', 'harmonica blues', 'blues legend']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1940'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '144.028'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     '216instros'
'TBPM' (BPM (beats per minute))                     '144.028'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDRC' (Recording time)                             '1940'
'TIT2' (Title/songname/content description)         'Blues Cha-Cha'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Edgar Blanchard & the Gondoliers'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'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:lastfmtags'                                   ['blues', 'harmonica blues', 'blues legend']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.41 dB'
'TXXX:replaygain_track_peak'                        '0.579516'

========================== row from database ==========================
                                              'id'  679108
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/216instros/Edgar Blanchard & the Gondoliers -- Blues Cha-Cha.mp3
                                         'working'  None
                                         'bitrate'  245
                                    'duration_sec'  168
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  5178001
                                           'mtime'  1620527853
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country prerock jb jazz unsorted
                                      'tag_artist'  Edgar Blanchard & the Gondoliers
                                     'tag_release'  216instros
                                       'tag_title'  Blues Cha-Cha
                                             'bpm'  144.028
                                    'search_title'  'blues':1 'cha':2,3 'chacha':4
                                   'search_artist'  'blanchard':2 'edgar':1 'gondoliers':4 'the':3
                                  'search_release'  '216instros':1
                                     'search_rest'  'country':4 'exotica':2 'jazz':1 'jb':6 'oldies':3 'prerock':5 'unsorted':7
                                    'search_combo'  '216instros':9C 'blanchard':6B 'blues':1A 'cha':2A,3A 'chacha':4A 'country':13 'edgar':5B 'exotica':11 'gondoliers':8B 'jazz':10 'jb':15 'oldies':12 'prerock':14 'the':7B 'unsorted':16
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-4', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['blues', 'harmonica blues', 'blues legend']
                                        'tag_date'  1940
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620527852.9845784  (2021-05-09 04:37:32)
                             'size'  5178001