As as an aveil for my father am I allowed to receive and/or send mishloach manos. Also, am I allowed to hear music on Purim if I eat the seuda by family like my children where groups come and sign and dance with music.
Answer:
You may and should send Mishloach Manos. You should not receive Mishloach Manos, your family may be given the Mishloach Manos.
You may attend a seudah as in normal years. You should not participate in the dancing itself.
Sources:
Shulchan Aruch O:C 696:6
Nimukei Orach Chaim 696:3, Pischei Tshuvah 696:4