Simplify the following text for a Grade 8 native English-speaking person.
Original: Thus , the xiao generally used for this purpose is one pitched in the key of F , known as qin xiao ã ç ç `` ã , which is narrower than an ordinary xiao .
Simplified: Thus , the xiao generally used for this purpose is one pitched in the key of F , known as qin xiao , which is narrower than an ordinary xiao .