Vectorizing code array modulo indexing

[Torbjörn Rathsman]

Is this kind of thing possible to do without do it in a loop?

    notes=[1 1 0 1 1 1 0 1 1 0 1 0]';
    x=12.*log(f./440)./log(2);
    spectrum=spectrum.*cos(pi.*x).^16.* notes( mod(round(x),12) + 1 );

f is a vector of 10^7 elements and I want to take each computed index 
and generate corresponding value from notes.