======================== unified (from filesystem) ========================
                                         'bitrate'  '149.651'
                                        'duration'  '48'
                                          'artist'  'BBC Radiophonic Workshop'
                                     'text_people'  ''
                                         'release'  'Essential Sound Effects'
                                           'title'  'Two Men Walking On Stone Floor'
                                           '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-4', 'q-other-1', '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'  '71'
                                      'tracktotal'  '90'
                                            'date'  '1985'
                                        'comments'  ''
                                           'genre'  'nonmusic-fragments-sounds and sfx'
                                             'bpm'  '89.731'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Essential Sound Effects'
'TBPM' (BPM (beats per minute))                     '89.731'
'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)         'Two Men Walking On Stone Floor'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'BBC Radiophonic Workshop'
'TRCK' (Track number/Position in set)               '71/90'
'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'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+3.36 dB'
'TXXX:replaygain_track_peak'                        '0.979882'

========================== row from database ==========================
                                              'id'  945727
                                            'path'  /data/Music/Bulk/0nonmusic/00sfx/bbc/71 Two Men Walking on Stone Floor.mp3
                                         'working'  None
                                         'bitrate'  149
                                    'duration_sec'  48
                                           'genre'  nonmusic-fragments-sounds and sfx
                                        'filesize'  919481
                                           'mtime'  1636404235
                                   'redo_metaread'  0
                                        'rest_str'   0nonmusic 00sfx bbc 71 nonmusic fragments sounds and sfx
                                      'tag_artist'  BBC Radiophonic Workshop
                                     'tag_release'  Essential Sound Effects
                                       'tag_title'  Two Men Walking On Stone Floor
                                             'bpm'  89.731
                                    'search_title'  'floor':6 'men':2 'on':4 'stone':5 'two':1 'walking':3
                                   'search_artist'  'bbc':1 'radiophonic':2 'workshop':3
                                  'search_release'  'effects':3 'essential':1 'sound':2
                                     'search_rest'  '00sfx':2 '0nonmusic':1 '71':4 'and':8 'bbc':3 'fragments':6 'nonmusic':5 'sfx':9 'sounds':7
                                    'search_combo'  '00sfx':14 '0nonmusic':13 '71':16 'and':20 'bbc':7B,15 'effects':12C 'essential':10C 'floor':6A 'fragments':18 'men':2A 'nonmusic':17 'on':4A 'radiophonic':8B 'sfx':21 'sound':11C 'sounds':19 'stone':5A 'two':1A 'walking':3A 'workshop':9B
                                    'tag_tracknum'  71
                                      'num_images'  0
                                             'key'  10A
                                           '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-4', 'q-syn-1', 'q-chart-2', 'q-other-1', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['soundtrack', 'avant garde', 'electronic', 'library music', 'experimental']
                                        'tag_date'  1985
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636404234.7611272  (2021-11-08 21:43:54)
                             'size'  919481