Among Lubavitcher Hasidim, a gathering known as a Farbrengen (פארברענגען, Yiddish for "gathering") is celebrated, similar to a tish. A Farbrengen may be conducted with or without the presence of a Rebbe, and even with the presence of only a few Hasidim. At a Farbrengen, zemiros are generally not sung (with the exception of the zemiros of the Arizal for each Sabbath meal), but rather only niggunim.
Read more about this topic: Tish (Hasidic Celebration)