Which side should I serve on? Introduction
In Tennis, the server alternates serving on the left side or the right side of the court every point, starting on the right. It is possible to figure out which side to serve on for that point just based on the score; if there have been an even number of points you serve on the right, and after an odd number of points, on the left. Scoring in tennis works as follows:
Points | Corresponding Call
       |
0      | Love
1      | 15
2      | 30
3      | 40

Once a player scores 4 points, they win the game. If the score is tied at 40-40, the call is &quot;Deuce&quot; rather than &quot;40-40&quot; or &quot;40 all&quot;. At Deuce, the subsequent point is called as &quot;Advantage [x]&quot; or &quot;Ad [x]&quot; where x is the player who scored. If the opposite player scores next, the score returns to Deuce, but if the same player scores again, they win.
The Challenge
Your task is to write a function that takes the score and returns a truthy or falsey value. The input may be a string containing the call or a list containing the scores. Love, Deuce, and Ad must be strings but the rest of calls may be any numerical type as well. Deuce may be represented by singleton list containing &quot;Deuce&quot; or a list with &quot;Deuce&quot; and another value of your choice. You may choose which side corresponds to truthy and falsey, but you must specify which corresponds to which side in your answer. The scores will be separated by a hyphen, except in the case of Deuce wherein it will be simply &quot;Deuce&quot;. For advantage, the score will be &quot;Ad-40&quot; or &quot;40-Ad&quot;.
Winning
This is code golf, so the score is the number of bytes in your function and the answer with the lowest score wins. Standard loopholes are forbidden.
Test Cases
Love-Love | True
Love-15   | False
Love-30   | True
Love-40   | False
15-Love   | False
15-15     | True
15-30     | False
15-40     | True
30-Love   | True
30-15     | False
30-30     | True
30-40     | False
40-Love   | False
40-15     | True
40-30     | False
Deuce     | True
Ad-40     | False
40-Ad     | False

These test cases are exhaustive, i.e. that list represents every possible input and its corresponding output. I used True for right and False for left.
Retina 0.8.2, 7 bytes
M`4|5
1

Try it online! Link includes test cases. Outputs 0 for right and 1 for left. Explanation:
M`[45]

The number of 4s and 5s...
1

... must equal 1 if the serve is on the left.