Letters that make first harmonic
s, a, o, f, n, c, h, m, r, t, i are letters that make 'first harmonic'
Words within first harmonic
Mon, harm, IRS, IR, ONI, IC, fir, ar, HA, first, harmonic, on, ic, arm, AR, MO, Ar, Ir, Mo, Ni, mo are words within 'first harmonic'