Write a function called isValidTune that will determine whether or not a given string of arbitrary length is composed of notes written exclusively in valid SPN.

Function Specifications:

Name: isValidTune()

Parameters (Your function should accept these parameters IN THIS ORDER):

tune (string): The tune to be examined

Return Value: True is the tune is composed of valid notes, false otherwise (bool)

The function should make use of your isValidNote() function from question 1.

If the string is empty, then it should not be considered valid SPN and your function should return false.

The function should not print anything.

Paste only your isValidTune function in the answer box below! A version of isValidNote has been provided for you to call. Do not past any #includes or a main, those have already been created for you.

For example:

Test	Input	Result
//testing valid tune	A4B2E1D7	1
//testing invalid tune with even number of characters	M8D3R1	0
//test string with odd number of characters	G19	0
//test valid string	F9B0C1	1
//test invalid string that starts with valid notes	F6B4E	0
// edge case - empty string		0
//test a string with valid notes in the middle	ACB4C300	0
// invalid input	csci1300	0
// valid tune	A5C3G8B2E8A3F7G2B2D8	1