Songs

1.  We hope you like it, it is  "The four seasons" by Vivaldi. This song follows the Creative Commons Attribution-NonCommercial-ShareAlike 1.0.

2.  The second one we want to share with you is "Encanto natural" by Sueño de Dahlia.
This song follows the Creative Commons Attribution-ShareAlike 3.0 Unported

3.  Sound effects

• Sound effect 1: Railroad Crossing Bell Sound
• Sound effect 2: Helicopter Approach Sound

This page uses Creative Commons Attribution 3.0 license, and also Public Domain sounds. They are sounds that have been added to the public domain. They can be added in different ways: 

1. Items that are older than the public domain age.

2. Members of the audio community donate their work.