Who pays the piper picks the tune. Those that dance must pay the music. These two sentences are:

Question

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Who pays the piper picks the tune. This proverb tells us that if someone pays for something, then they have the right to decide how things are going to go. For example, if your friend decides to buy the whole group pizza, they should at least get to pick the toppings.
Those that dance must pay the music warns us that if we use something, we should be prepared to pay for it.
These proverbs are similar as they both relate to paying for goods or services.

Who Pays the Piper Picks the Tune