Record and mix multiple tracks

What can we use if we don't have the exact music recording app, a real instrument, or a studio mic listed in the instructions?

Use a free recording app like GarageBand (iOS) or BandLab (Android/desktop), your phone or computer built-in mic to record claps, humming, or household percussion, and set tempo with the app’s metronome or by tapping your foot.

The app recorded silence or the second track sounds out of time—what should we check first?

Make sure you armed the correct empty track by tapping its record button, grant microphone permission to the app, verify the metronome or beat is playing while you record, and use headphones when overdubbing to avoid bleed and timing errors.

How can we adapt this multi-track project for younger kids or make it more challenging for older kids?

For young children, limit the session to a simple beat and one or two parts like claps and a short sung line with a parent controlling Record/Stop, while older kids can add more tracks, experiment with reverb/echo and volume sliders, and try arranging multiple sections before export.

What are simple ways to improve or personalize our finished song after following the basic steps to mix and export?

Try adding extra harmony or rhythm layers, apply a second effect (e.g., echo) to a track, use panning plus the volume sliders to give each part space, then export a high-quality bounce and design a cover image before sharing on DIY.org.