======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '173'
                                          'artist'  'The Raymond Scott Quintette'
                                     'text_people'  ''
                                         'release'  'Microphone Music'
                                           'title'  'A Little Bit of Rigoletto'
                                           '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-1', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['swing', 'jazz', 'all', 'american', 'jaxxx']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  ''
                                            'date'  '1937'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '132.966'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Microphone Music'
'TBPM' (BPM (beats per minute))                     '132.966'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDRC' (Recording time)                             '1937'
'TIT2' (Title/songname/content description)         'A Little Bit of Rigoletto'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Raymond Scott Quintette'
'TRCK' (Track number/Position in set)               '8'
'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'                                   ['swing', 'jazz', 'all', 'american', 'jaxxx']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+3.41 dB'
'TXXX:replaygain_track_peak'                        '0.926978'

========================== row from database ==========================
                                              'id'  679628
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/The Raymond Scott Quintette - Microphone Music (1936-39)  [128k]/Raymond Scott Quintette - Microphone Music -CD1-08- A Little Bit Of Rigoletto.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  173
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  2825905
                                           'mtime'  1620536565
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country (1936 39) [128k] CD1 08 Of prerock jb jazz unsorted
                                      'tag_artist'  The Raymond Scott Quintette
                                     'tag_release'  Microphone Music
                                       'tag_title'  A Little Bit of Rigoletto
                                             'bpm'  132.966
                                    'search_title'  'a':1 'bit':3 'little':2 'of':4 'rigoletto':5
                                   'search_artist'  'quintette':4 'raymond':2 'scott':3 'the':1
                                  'search_release'  'microphone':1 'music':2
                                     'search_rest'  '128k':9,10 '1936':5,6 '39':7,8 'cd1':11 'country':4 'exotica':2 'jazz':1 'jb':14 'of':12 'oldies':3 'prerock':13 'unsorted':15
                                    'search_combo'  '128k':20,21 '1936':16,17 '39':18,19 'a':1A 'bit':3A 'cd1':22 'country':15 'exotica':13 'jazz':12 'jb':25 'little':2A 'microphone':10C 'music':11C 'of':4A,23 'oldies':14 'prerock':24 'quintette':9B 'raymond':7B 'rigoletto':5A 'scott':8B 'the':6B 'unsorted':26
                                    'tag_tracknum'  8
                                      'num_images'  1
                                             'key'  5A
                                           '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-3', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['swing', 'jazz', 'all', 'american', 'jaxxx']
                                        'tag_date'  1937
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620536565.4070387  (2021-05-09 07:02:45)
                             'size'  2825905