These are the seven sorts of the property which belongs to space. Sound pervades like the Supreme Being the entire space though attached especially to drums drums and other instruments.
एष सप्तविधः प्रोक्तो गुण आकाशसम्भवः। ऐश्वर्येण तु सर्वत्र स्थितोऽपि पटहादिषु॥