(a) A will may be proved in common form upon the testimony of a single subscribing witness and without notice to anyone. If the will is self-proved, compliance with signature requirements for execution is presumed and other requirements for execution are presumed without the testimony of any subscribing witness.

(b) The petition to probate a will in common form shall set forth the same information required in a petition to probate a will in solemn form. The petition shall conclude with a prayer for the issuance of letters testamentary.