======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '147'
                                          'artist'  '[unknown]'
                                     'text_people'  ''
                                         'release'  'Radio Archival Oddities'
                                           'title'  'The Duck Announces The End Of WFMU In 1969'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-1', "
 "'q-chart-1', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '05'
                                      'tracktotal'  ''
                                            'date'  '1970'
                                        'comments'  ''
                                           'genre'  'nonmusic-speech-comedy or drama'
                                             'bpm'  '143.8'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Radio Archival Oddities'
'TBPM' (BPM (beats per minute))                     '143.8'
'TCON' (Content type, a.k.a. Genre)                 'nonmusic-speech-comedy or drama'
'TDRC' (Recording time)                             '1970'
'TIT2' (Title/songname/content description)         'The Duck Announces The End Of WFMU In 1969'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               '[unknown]'
'TRCK' (Track number/Position in set)               '05'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '1'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.30 dB'
'TXXX:replaygain_track_peak'                        '0.204759'
'TXXX:tracknum'                                     '05'

========================== row from database ==========================
                                              'id'  506449
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Radio Archival Oddities (wfmu compilation tape)/side b [160k]/05 The Duck Announces The End Of WFMU In 1969.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  147
                                           'genre'  nonmusic-speech-comedy or drama
                                        'filesize'  2950898
                                           'mtime'  1637329893
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm (wfmu compilation tape) side b [160k] 05 nonmusic speech comedy or drama
                                      'tag_artist'  [unknown]
                                     'tag_release'  Radio Archival Oddities
                                       'tag_title'  The Duck Announces The End Of WFMU In 1969
                                             'bpm'  143.8
                                    'search_title'  '1969':8 'announces':3 'duck':2 'end':4 'in':7 'of':5 'the':1 'wfmu':6
                                   'search_artist'  'unknown':1,2
                                  'search_release'  'archival':2 'oddities':3 'radio':1
                                     'search_rest'  '160k':8,9 'b':7 'comedy':12 'compilation':3 'drama':14 'nonmusic':10 'or':13 'side':6 'speech':11 'tape':4,5 'wfmu':1,2
                                    'search_combo'  '160k':21,22 '1969':8A 'announces':3A 'archival':12C 'b':20 'comedy':25 'compilation':16 'drama':27 'duck':2A 'end':4A 'in':7A 'nonmusic':23 'oddities':13C 'of':5A 'or':26 'radio':11C 'side':19 'speech':24 'tape':17,18 'the':1A 'unknown':9B,10B 'wfmu':6A,14,15
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-1', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-1', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['mysterious', 'unknown', 'all', 'mistagged artist', 'rock']
                                        'tag_date'  1970
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1637329892.5436535  (2021-11-19 14:51:32)
                             'size'  2950898