Yo-yos

Work for orchestra, premiered by the ESMAE Symphonic Orchestra at Teatro Helena Sá e Costa, conducted by Thomas Hauschild.

The yo-yo (a word from the Ilocanian) basic movement is to push downwards and, at the exact moment it reaches the bottom, pull gently to rise it again. If this little pull upwards is not given, the combination of inertia and friction will make it rise anyway, but at a lower height. Besides, viscosity of the medium and the gravity force may influence speed and energy loss, which is dissipated as heat.

Moreover, the yo-yo basic technique might be developed into virtuosistic movements, which multiply when several yo-yos interlace between themselves. It’s very easy to lose the idea of the ondulatory movement of the yo-yo.