======================== unified (from filesystem) ========================
                                         'bitrate'  '190.718'
                                        'duration'  '77'
                                          'artist'  'BBC Radiophonic Workshop'
                                     'text_people'  ''
                                         'release'  'Essential Sound Effects'
                                           'title'  'Concert Hall Orchestra Tuning Applause'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['soundtrack', 'avant garde', 'electronic', 'library music', 'experimental']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '76'
                                      'tracktotal'  '90'
                                            'date'  '1985'
                                        'comments'  ''
                                           'genre'  'nonmusic-fragments-sounds and sfx'
                                             'bpm'  '135.184'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Essential Sound Effects'
'TBPM' (BPM (beats per minute))                     '135.184'
'TCON' (Content type, a.k.a. Genre)                 'nonmusic-fragments-sounds and sfx'
'TDRC' (Recording time)                             '1985'
'TENC' (Encoded by)                                 'Exact Audio Copy   (Secure mode)'
'TIT2' (Title/songname/content description)         'Concert Hall Orchestra Tuning Applause'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'BBC Radiophonic Workshop'
'TRCK' (Track number/Position in set)               '76/90'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['soundtrack', 'avant garde', 'electronic', 'library music', 'experimental']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.51 dB'
'TXXX:replaygain_track_peak'                        '0.778145'

========================== row from database ==========================
                                              'id'  946456
                                            'path'  /data/Music/Bulk/0nonmusic/00sfx/bbc/76 Concert Hall Orchestra Tuning Ap.mp3
                                         'working'  None
                                         'bitrate'  190
                                    'duration_sec'  77
                                           'genre'  nonmusic-fragments-sounds and sfx
                                        'filesize'  1858033
                                           'mtime'  1636404235
                                   'redo_metaread'  0
                                        'rest_str'   0nonmusic 00sfx bbc 76 nonmusic fragments sounds and sfx
                                      'tag_artist'  BBC Radiophonic Workshop
                                     'tag_release'  Essential Sound Effects
                                       'tag_title'  Concert Hall Orchestra Tuning Applause
                                             'bpm'  135.184
                                    'search_title'  'applause':5 'concert':1 'hall':2 'orchestra':3 'tuning':4
                                   'search_artist'  'bbc':1 'radiophonic':2 'workshop':3
                                  'search_release'  'effects':3 'essential':1 'sound':2
                                     'search_rest'  '00sfx':2 '0nonmusic':1 '76':4 'and':8 'bbc':3 'fragments':6 'nonmusic':5 'sfx':9 'sounds':7
                                    'search_combo'  '00sfx':13 '0nonmusic':12 '76':15 'and':19 'applause':5A 'bbc':6B,14 'concert':1A 'effects':11C 'essential':9C 'fragments':17 'hall':2A 'nonmusic':16 'orchestra':3A 'radiophonic':7B 'sfx':20 'sound':10C 'sounds':18 'tuning':4A 'workshop':8B
                                    'tag_tracknum'  76
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['soundtrack', 'avant garde', 'electronic', 'library music', 'experimental']
                                        'tag_date'  1985
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636404234.9139764  (2021-11-08 21:43:54)
                             'size'  1858033