Answer:
A reed. Sometimes a double or single reed but it is a removable piece of bamboo.
Explanation:
A. key signature , the key signature is a list of all the sharps and flats in the key that the music is in.
Aldrich Hitchcock was considered one of the best English director. He has a technique in getting people's attention through the visual effects of his films where some of it are optical effects and others are mechanical effects.The sound and visual techniques require less attention like his film entitled "Blackmail".
Aside from being a director, he is also a producer and he popularized McGuffin technique.
You serve the condiments in the bag with the customers food
