The components required for this circuit are:

This circuit is an embellishment of the
circuit for a simple solenoid motor.
The features which are added are

The following diagrams introduce these circuit elements one at a time.

The Circuit Before the Speaker-and-LED Embellishments

The “Before” Circuit – a Simple Solenoid

Adding the Speaker ##3

To accompany the water display with “music” a high-power speaker is required.
The circuitry required for this speaker is exactly the same as the
circuit for speakers.

Circuit with Speaker

Adding Some Indicator LEDs

Two LEDs were added to this circuit. One tells when a tone is being played by
the speaker. The other tells when the solenoid was turned on. The circuitry
required to add these elements is the same as the
circuit for external LEDs.

Circuit with Speaker and Indicator LEDs