In Bridge v. Oasis Inc. (Appeal No. 23391), the establishment there asserted a "defense" that the music in the premises was for the enjoyment of the patrons. In that case, the ECB responded to this evidence with another presumption: the fact that music made by a sound reproduction device played within a commercial premises was permitted to be heard on the street established a "business or advertising" purpose, and therefore constituted a violation of section 24-220 (b). The ECB in Bridge v. Oasis therefore relied on another presumption to establish this second prong and affirmed the violation found below.