成唯識論演祕 2.559

2.559

詳曰：經中唯言是佛化作，絃管等聲要人吹扣，無教不例，故難依也。

Detailed evaluation: The sūtras only say that it is transformed by a buddha. Sounds of strings and pipes require human blowing and striking; having no scriptural precedent, it is difficult to rely upon.