TubeLabLight is a simplified version of TubeLab designed for teaching: with the same computing engine it shows the resonances of pipes, wind instruments and the vocal tract. You choose a ready-made project (cylindrical and conical pipes, flute, clarinet, oboe, exponential horn, didgeridoo and the seven Italian vowels), change its shape with a few controls and read the frequencies of the resonance modes, the corresponding notes and, for the voice, the vowel triangle; you can also listen to the sound produced. The app is in Italian and English. The guided paths propose step-by-step experiments.