Ahmet Zappa in live performances. Under Ahmet's direction, the trust proposed a trademark on the name "Zappa", which would prevent Dweezil from using the name for commercial purposes without authorization. Since 2006, Dweezil toured with an act called Zappa Plays Zappa, playing his father's music. The trust sought to collect a fee from Dweezil for continued use of the name, as well as proceeds from merchandise sold at Zappa Plays Zappa concerts. In response to the trust's action, Dweezil renamed his performance series "50 Years of Frank: Dweezil Zappa Plays Whatever the F@%k He Wants — the Cease and Desist Tour. Zappa
Sun and moon letters consonant assimilation rule or the shaddah when latinized in Latin-spelled languages. Sometimes the sun and moon rules are not followed in casual speech. E.g. personal name: الرَّحْمَن - Al-Rahman instead of ""Ar-Raḥmān""; geographical name: الْجُمْهُورِيَّةُ التُّونِسِيَّة - Al-Jumhuriyah Al-Tunisiyah instead of ""al-Jumhūrīyatu ’t-Tūnisīyah"". Sun and moon letters In Arabic and Maltese, the consonants are divided into two groups, called the sun letters or solar letters ( ') and moon letters or lunar letters ( '), based on whether they assimilate the letter ' ( ') of a preceding Arabic definite article "al-" (), which is an important general rule used