Seeing a piper in your dream indicates that you are anxious about gaining something or expressing yourself. It reflects your inner desires or worries. If you dream of a wedding piper, it signifies joy or celebration. The presence of the piper can also hint at meaningless chatter, highlighting some unnecessary aspects of your life.
From Imam Muhammad Ibn Seerin's Dictionary of Dreams According to Islamic Inner Traditions â entry "Piper" (page 331).
In a dream, a piper represents someone who is longing for something, or who is anxious to say or do something, or he could denote vain talk. A wedding piper in a dream represents festivities. The court piper in a dream represents an army going to war. A piper in a dream also represents an obituarist, an announcer of a murder, someone who exposes an adulterer, or one who uncovers a secret prostitution ring and exposes it leaders. A piper in a dream also may denote one's anus. An unknown piper in a dream means suffering from a venereal disease. A piper in a dream also could represent a mourner, a good mother, or perhaps a bad mother who is bereaved of her child.
Note: Islamic dream interpretation depends on the dreamer's circumstances and state. This is a general guide drawn directly from the source book.