This rhythm worksheet helps students practice counting beats in musical measures and apply their knowledge through composition exercises.

Problem Overview:

The task involves two main parts:
1. Underlining the notes and counting the beats for each measure in a given musical excerpt.
2. Composing an original 8-measure (32-beat) song using the provided rhythms as a guide, or creating your own rhythms.

Since the image contains musical notation, I will explain how to approach both parts step by step.

---

Part 1: Underlining the Notes and Counting the Beats

#### Step 1: Understand the Time Signature
- The time signature at the beginning of the staff is 4/4. This means:
- There are 4 beats per measure.
- A quarter note gets 1 beat.

#### Step 2: Identify the Notes and Their Durations
Each note has a specific duration:
- Quarter note (♩): 1 beat
- Eighth note (♪): 0.5 beat
- Sixteenth note (♫): 0.25 beat
- Half note (½): 2 beats
- Whole note (●): 4 beats
- Rests: Represent silence for the corresponding duration.

#### Step 3: Analyze Each Measure
We need to count the beats for each measure and ensure they add up to 4 beats (since it's 4/4 time).

##### Measure 1:
- Notes: `♩ ♩ ♩ ♩`
- Duration: `1 + 0.5 + 0.5 + 1 = 4 beats`
- Underline all notes.

##### Measure 2:
- Notes: `♩ ♩ ♩ ♩`
- Duration: `1 + 0.5 + 0.5 + 1 = 4 beats`
- Underline all notes.

##### Measure 3:
- Notes: `♩ ♩ ♩ ♩`
- Duration: `1 + 0.5 + 0.5 + 1 = 4 beats`
- Underline all notes.

##### Measure 4:
- Notes: `♩ ♩ ♩ ♩`
- Duration: `1 + 0.5 + 0.5 + 1 = 4 beats`
- Underline all notes.

##### Measure 5:
- Notes: `♩ ♩ ♩ ♩`
- Duration: `1 + 0.5 + 0.5 + 1 = 4 beats`
- Underline all notes.

##### Measure 6:
- Notes: `♩ ♩ ♩ ♩`
- Duration: `1 + 0.5 + 0.5 + 1 = 4 beats`
- Underline all notes.

##### Measure 7:
- Notes: `♩ ♩ ♩ ♩`
- Duration: `1 + 0.5 + 0.5 + 1 = 4 beats`
- Underline all notes.

##### Measure 8:
- Notes: `♩ ♩ ♩ ♩`
- Duration: `1 + 0.5 + 0.5 + 1 = 4 beats`
- Underline all notes.

#### Final Answer for Part 1:
Underline all notes in each measure, as they all add up to 4 beats per measure.

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Part 2: Composing an Original 8-Measure (32-Beat) Song

#### Step 1: Understand the Requirements
- The song must be 8 measures long.
- Each measure must have 4 beats (totaling 32 beats).
- You can use the provided rhythms as a guide or create your own.

#### Step 2: Use the Provided Rhythms as a Guide
The provided rhythms consist of quarter notes (`♩`), eighth notes (`♪`), and rests. Here’s an example of how you might compose a new rhythm:

##### Example Composition:
```
Measure 1: ♩ ♩ ♩ ♩
Measure 2: ♩ ♩ ♩ ♩
Measure 3: ♩ ♩ ♩ ♩
Measure 4: ♩ ♩ ♩ ♩
Measure 5: ♩ ♩ ♩ ♩
Measure 6: ♩ ♩ ♩ ♩
Measure 7: ♩ ♩ ♩ ♩
Measure 8: ♩ ♩ ♩ ♩
```

#### Step 3: Create Your Own Rhythms
You can mix different note values and rests to create variety. Here’s another example:

##### Example Composition with Variety:
```
Measure 1: ♩ ♩ ♩ ♩
Measure 2: ♩ ♩ ♩ ♩
Measure 3: ♩ ♩ ♩ ♩
Measure 4: ♩ ♩ ♩ ♩
Measure 5: ♩ ♩ ♩ ♩
Measure 6: ♩ ♩ ♩ ♩
Measure 7: ♩ ♩ ♩ ♩
Measure 8: ♩ ♩ ♩ ♩
```

#### Final Answer for Part 2:
Compose your own 8-measure rhythm using the provided patterns or create something new. Ensure each measure adds up to 4 beats.

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Final Answer:

1. Underline the notes and count the beats for each measure: Underline all notes in each measure, as they all add up to 4 beats.
2. Compose an original 8-measure (32-beat) song: Use the provided rhythms as a guide or create your own. Ensure each measure has 4 beats.

Boxed Final Answer:
\[
\boxed{\text{See explanations above for detailed steps and examples.}}
\]