Daily Halacha – Is it Permitted to Bring Musical Instruments into the Synagogue?
Understanding synagogue etiquette: When musical instruments and wine are permissible in sacred spaces

Is it permitted to drink wine in the synagogue?
It is not permitted to drink alcoholic beverages in the synagogue lest it lead to drunkenness and frivolity [Yalkut Yosef 151, 24].
Is it permitted to bring musical instruments into the synagogue?
If musical instruments are brought into the synagogue occasionally for the purpose of a mitzvah celebration, one may be lenient [Responsa of the Rishon LeZion].
Ach Tov VaChesed – Daily Halacha