Do the tones sound the SAME or DIFFERENT? Example 1 https://primospiralseries.com/wp-content/uploads/2015/06/diff_10.mp3 Example 2 https://primospiralseries.com/wp-content/uploads/2015/06/same_7.mp3 Example 3 https://primospiralseries.com/wp-content/uploads/2015/06/diff_11.mp3 Example 4 https://primospiralseries.com/wp-content/uploads/2015/06/diff_7.mp3 Example 5 https://primospiralseries.com/wp-content/uploads/2015/06/same_6.mp3