Rav Miller: “This so geshmak, we could sit here in the air conditioned room studying for the next two hundred years!” Today’s learning is sponsored  In honor of Rabbi Yoshi Wolhendler Shlita  Sponsor a day's learning (thousands of minutes!) for only $72 click here  https://www.flipcause.com/secure/cause_pdetails/ODUwOTU=  Rav Yosef: Rabbi Yosi bar Yehuda holds that the primary component of Shira is the musical instruments, so they’re considered Avodah which overrides Shabbos.   Beraisa: Vessels of avodah that are made of wood; Rabbi Yehuda Hanasi deems them unfit and Rabbi Yosi bar Yehuda deems them fit.   Rav Yosef: It seems that Rabbi Yosi bar Yehuda who deems the wooden vessel fit learns from Moshe’s flute. This is because he holds that musical instruments are vessels of avodah since they are necessary for shira.   And Rabbi Yehuda Hanasi who deems the wooden vessel unfit holds that the primary shira is singing with the mouth, and the wooden flute was not an instrument of avodah.   Response: That is not a proof. We could say that everyone agrees that shira is singing accompanied by musical instruments. Here, the question is whether we can learn “the possible from the impossible”.   Summary   Response 2: We can say that everyone agrees that the primary component of shira is singing with the mouth, or that we do not “learn the possible from the impossible”. But we learn a law from the golden Menorah. Here, the question is which method we use to learn this law.  There is a system of Klal uPrat uKlal. When there’s a general statement followed by a specific detail, then this detail defines the entire general statement; that’s Klal uPrat. When this detail is followed by another general statement, it includes more but is still limited to what is similar to the detail. For instance: “Make a utensil (Klal) out of gold (Prat); a carved work (Klal)”, this teaches that it must be made out of metal, similar to gold. The other system is Ribui, Miut v’Ribui. According to this system, a Miut does not define the general statement, rather it accomplishes what a Klal uPrat uKlal accomplishes. An additional Ribui includes everything originally included by the general statement. The Miut only comes to exclude one thing. In the case of the Menorah: “Make a utensil (Ribui - out of any material) out of gold (Miut - any metal, similar to gold); a carved work (Ribui - make it out of anything but the cheapest material; clay)”   Rabbi Yehuda Hanasi follows the system of Klal uPrat uKlal, so he deems wood unfit for the sacred vessels, and Rabbi Yosi bar Yehuda follows the system of Ribui Miut v’Ribui, according to which only clay vessels are unfit.