Part of "India by the Nile" festival, Indian vocalist Shubha Mudgal explores the Hindustani classical style in music in a concert featuring Aneesh Pradhan (tabla) and Sudhir Nayak (harmonium), to be held on 23 April at the Cairo Opera House Small Hall and on 25 April at the Bibliotheca Alexandrina Main Hall, 8pm (free entry).