Complex sentence: Her older brother was the composer and pianist Henri Betti (1917--2005) and like him, she studied music and especially singing at the Conservatory of Nice where she obtained a "Premier Prix de Chant" in 1943.
Split into simpler sentences: Her older brother was the composer and pianist Henri Betti. She studied music and especially singing at the Conservatory of Nice, where she obtained a "Premier Prix de Chant" in 1943.