static String printGuitarStyles(final Program program) {
        StringBuilder sb = new StringBuilder();
        if (program.isAcoustic()) {
            sb.append("Acoustic, ");
        }
        if (program.isBass()) {
            sb.append("Bass, ");
        }
        if (program.isBlues()) {
            sb.append("Blues, ");
        }
        if (program.isClean()) {
            sb.append("Clean, ");
        }
        if (program.isCountry()) {
            sb.append("Country, ");
        }
        if (program.isJazz()) {
            sb.append("Jazz, ");
        }
        if (program.isRock()) {
            sb.append("Rock, ");
        }

        return trimDelimitedList(sb);
    }