======================== unified (from filesystem) ========================
                                         'bitrate'  '189.768'
                                        'duration'  '894'
                                          'artist'  'The Natural Sounds of the Wilderness'
                                     'text_people'  ''
                                         'release'  '10 CDs collectionEchoes of Nature - Wilderness River'
                                           'title'  'Wilderness Rainshower'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['meditation music', 'nature sounds', 'ambient']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '03'
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'nonmusic-fragments-sounds and sfx'
                                             'bpm'  '116.924'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     '10 CDs collectionEchoes of Nature - Wilderness River'
'TBPM' (BPM (beats per minute))                     '116.924'
'TCON' (Content type, a.k.a. Genre)                 'nonmusic-fragments-sounds and sfx'
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         'Wilderness Rainshower'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Natural Sounds of the Wilderness'
'TPOS' (Part of a set)                              '1/10'
'TRCK' (Track number/Position in set)               '03'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['meditation music', 'nature sounds', 'ambient']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'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'                        '+11.85 dB'
'TXXX:replaygain_track_peak'                        '0.954852'

========================== row from database ==========================
                                              'id'  654850
                                            'path'  /data/Music/Bulk/0nonmusic/The Natural Sounds of the Wilderness 10 CDs collectionEchoes of Nature - Wilderness River/03 Wilderness Rainshower.mp3
                                         'working'  None
                                         'bitrate'  189
                                    'duration_sec'  894
                                           'genre'  nonmusic-fragments-sounds and sfx
                                        'filesize'  21223424
                                           'mtime'  1636404240
                                   'redo_metaread'  0
                                        'rest_str'   0nonmusic 03 nonmusic fragments sounds and sfx
                                      'tag_artist'  The Natural Sounds of the Wilderness
                                     'tag_release'  10 CDs collectionEchoes of Nature - Wilderness River
                                       'tag_title'  Wilderness Rainshower
                                             'bpm'  116.924
                                    'search_title'  'rainshower':2 'wilderness':1
                                   'search_artist'  'natural':2 'of':4 'sounds':3 'the':1 'wilderness':5
                                  'search_release'  'cds':1 'collection':7 'collectionechoes':2 'echoes':8 'nature':4 'of':3 'river':6 'wilderness':5
                                     'search_rest'  '0nonmusic':1 'and':5 'fragments':3 'nonmusic':2 'sfx':6 'sounds':4
                                    'search_combo'  '0nonmusic':16 'and':20 'cds':8C 'collection':14C 'collectionechoes':9C 'echoes':15C 'fragments':18 'natural':4B 'nature':11C 'nonmusic':17 'of':6B,10C 'rainshower':2A 'river':13C 'sfx':21 'sounds':5B,19 'the':3B 'wilderness':1A,7B,12C
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['meditation music', 'nature sounds', 'ambient']
                                        'tag_date'  1995
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636404240.0792806  (2021-11-08 21:44:00)
                             'size'  21223424