Do the tones sound the SAME or DIFFERENT? Example 1 https://primospiralseries.com/wp-content/uploads/2015/06/same_9.mp3 Example 2 https://primospiralseries.com/wp-content/uploads/2015/06/same_2.mp3 Example 3 https://primospiralseries.com/wp-content/uploads/2015/06/diff_3.mp3 Example 4 https://primospiralseries.com/wp-content/uploads/2015/06/same_4.mp3 Example 5 https://primospiralseries.com/wp-content/uploads/2015/06/diff_6.mp3