b.chainBp(s, 0);
~~~~
[pow = 0]
bpmodifiers.append(pow);
~~~~
    for (int i = 0; i < bpmodifiers.size(); i++) {
        int numer = (20+bpmodifiers[i]);
        int denom = 20;
        if (bpmodifiers[i] == 0) {
            numer = 5461;
            denom = 4096;
        }
        power = power * (numer/denom);
    }