const notes = [
	'Ab',
	'A',
	'A#',
	
	'Bb',
	'B',
	
	'C',
	'C#',

	'Db',
	'D',
	'D#',

	'Eb',
	'E',

	'F',
	'F#',

	'Gb',
	'G',
	'G#',
]

const directions = ['↑', '↓']
const intervals = ['m6', 'M6']

const getRandomIndex = (arrayParam)=>{
	return Math.floor((Math.random()*arrayParam.length))
}

const generateQuestion = ()=>{
	const note = notes[getRandomIndex(notes)]
	const direction = directions[getRandomIndex(directions)]
	const interval = intervals[getRandomIndex(intervals)]

	return `${note} ${direction} ${interval}`;
}

document.querySelector('body').innerHTML = generateQuestion()