Library size

Comment	Code snippet	Program bytes	Data bytes
no song	player.play(0);	986	1
no song	player.play_P(0);	962	1
song in RAM	player.play("Indiana:d=4,o=5,b=4000:e,8p,8f,8g,8p,1c6");	1026	41
song in PROGMEM	player.play_P(PSTR("Indiana:d=4,o=5,b=4000:e,8p,8f,8g,8p,1c6"));	1002	1

The maximum size is calculated as a difference:

Program1 = empty template + code snippet

Program2 = empty template

Maximum library size = Program1 size - Program2 size

Actual size can be lower. MCU=atmega168

Template:

#include <rtttl.h>

Rtttl player;

const int pinSpeaker = 13;

void setup()
{
    Serial.begin(9600);
    tone(5, 400); // to include tone lib

    snippet;

}

void loop()
{
}