======================== unified (from filesystem) ========================
                                         'bitrate'  '24.0'
                                        'duration'  '1884'
                                          'artist'  ''
                                     'text_people'  ''
                                         'release'  'The Shadow Radio Recordings'
                                           'title'  '37-10-31TheThreeGhosts'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1937'
                                        'comments'  ''
                                           'genre'  'nonmusic-speech-comedy or drama'
                                             'bpm'  '137.946'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Shadow Radio Recordings'
'TBPM' (BPM (beats per minute))                     '137.946'
'TCON' (Content type, a.k.a. Genre)                 'nonmusic-speech-comedy or drama'
'TDRC' (Recording time)                             '1937'
'TIT2' (Title/songname/content description)         '37-10-31TheThreeGhosts'
'TKEY' (Initial key)                                '10A'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.10 dB'
'TXXX:replaygain_track_peak'                        '0.500177'

========================== row from database ==========================
                                              'id'  949556
                                            'path'  /data/Music/Bulk/0nonmusic/RkoOrsonWelles-TheShadow-RadioRecodings/TheShadow37-10-31TheThreeGhosts.mp3
                                         'working'  None
                                         'bitrate'  24
                                    'duration_sec'  1884
                                           'genre'  nonmusic-speech-comedy or drama
                                        'filesize'  5655006
                                           'mtime'  1621853405
                                   'redo_metaread'  0
                                        'rest_str'   0nonmusic RkoOrsonWelles TheShadow RadioRecodings TheShadow37 nonmusic speech comedy drama
                                      'tag_artist'  None
                                     'tag_release'  The Shadow Radio Recordings
                                       'tag_title'  37-10-31TheThreeGhosts
                                             'bpm'  137.946
                                    'search_title'  '10':2,6 '31the':7 '31thethreeghosts':3 '37':1,5 '371031the':8 '371031thethreeghosts':4 'ghosts':10 'three':9
                                   'search_artist'  None
                                  'search_release'  'radio':3 'recordings':4 'shadow':2 'the':1
                                     'search_rest'  '0nonmusic':1 'comedy':8 'drama':9 'nonmusic':6 'orson':11 'radio':15 'radiorecodings':4 'recodings':16 'rko':10 'rkoorsonwelles':2 'shadow':14 'shadow37':17 'speech':7 'the':13 'theshadow':3 'theshadow37':5 'welles':12
                                    'search_combo'  '0nonmusic':15 '10':2A,6A '31the':7A '31thethreeghosts':3A '37':1A,5A '371031the':8A '371031thethreeghosts':4A 'comedy':22 'drama':23 'ghosts':10A 'nonmusic':20 'orson':25 'radio':13C,29 'radiorecodings':18 'recodings':30 'recordings':14C 'rko':24 'rkoorsonwelles':16 'shadow':12C,28 'shadow37':31 'speech':21 'the':11C,27 'theshadow':17 'theshadow37':19 'three':9A 'welles':26
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-2', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1937
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621853405.1448636  (2021-05-24 12:50:05)
                             'size'  5655006