# Build a practice notebook you can hear or watch

Build a native Android application for recording practice and returning to the attempts, references, and notes that make the next session useful. Build it extremely well for the skill the person is working on. Follow the [shared launch](../shared/launch.md).

Learn what they practice and what they want to notice. Guitar, pronunciation, dance, and public speaking call for different views of a recording. Start with a real exercise and the way they currently compare attempts.

## Keep the attempt with its purpose

Let the person create an exercise or practice topic, add the relevant instructions or reference, and record an audio or video attempt. Keep the recording associated with what they were trying to do, when they practiced, and any useful conditions such as tempo or the passage being used.

Make beginning and ending a recording convenient in the actual setting. A dancer may place the phone across the room; a musician may need to get their hands back to the instrument. Give capture and playback controls the attention that those circumstances require.

Save the original recording and let the person identify the part they want to work on. They can add a note to the attempt or a particular moment and return to it later. Keep progress through ordinary interruptions and make local recording useful without a connection.

## Help them compare

Let the person bring up a previous attempt or reference alongside the current work. Make it easy to move between the relevant passages, replay a difficult moment, and record what they notice.

Show the context that makes a comparison meaningful. The person should be able to tell whether two attempts used the same exercise, speed, or conditions. They can choose what they are judging and keep that focus with their notes.

Keep different takes available so improvement can be examined through actual recordings. Let the person mark a useful attempt, identify something to revisit, or decide that a different exercise would help next time.

If they already use the [video practice extension](../browser-extensions/video-practice-controls.md), preserve the reference passage and notes when bringing that material into the notebook. Their own recording and the source they are practicing should remain distinguishable.

## Return to the next session

Give the notebook a clear way to find an exercise, see recent work, and resume from the last useful note. Let the person organize it around their actual practice.

Keep recordings, notes, and references exportable and recoverable under the shared launch's ownership guidance. Let the person share a selected attempt and its context with a teacher or friend when they want feedback.

Make storage use understandable, including the relationship between original recordings and any smaller previews or exports. Give the person control over which attempts they keep.

## Practice with the app

Handle the Android build and installation, with appropriate camera and microphone access for the chosen activity. Deliver a useful first exercise setup and a working capture-and-comparison experience.

Record two attempts, mark a passage, compare it with an earlier take or reference, and add a note for next time. Return after closing the app. Judge whether the notebook helps the person notice something they can use in their practice.

Explain why a recording becomes more useful when its exercise, context, and observations remain attached. Later, a teacher connection or an appropriate AI capability can give feedback on a chosen aspect of the attempt. Select that capability for what it can actually hear or see, preserving the original recording and the person's control over what is shared.