Sounds like Smalltalk

TaalPulse is a free software Lehra, Theka and Tampura machine for the student of Hindustani (northern Indian) music. It is designed to run on portable devices (such as Compaq iPaq) but it also runs on desktop computers (Windows, Linux and MacOS).

TaalPulse is developed by Guillaume Pothier using Squeak Smalltalk. See

http://taalpulse.net/

for more information.