How to say "excuse me" and " I dont understand" in Spanish I am taking lessons online and they said to say "disculpa" and "no entiendo" however I have always said " escucha me" and "yo no comprende" which is the correct way to say it in south america?

Can listening to Salsa help you learn Spanish? I have been listening to a lot of Salsa music on Itunes (Salsa SKY.FM) lately because I like the beat and rhythm, I have noticed that I can sometimes understand some words when the musicians are signing. Do you think if I listen to salsa everyday it will help me learn Spanish? Can you recommend some songs I can listen to? Some of today's tracks include the following: 1. Louie Ramirez – pa’cuco yo 2. Willie Rosario – A Mania 3. Sonora Poncena Y Celia Crur – Abreme La Puerta 4. Willie Colon – Sevillana 5. Eddie Palmieri – Tu Tu Ta Ta 6. Avid Compliations – Caliente Caliente – Que Barbara 7. Julio Castro & Orquesta – Dolores esquina miseria 8. Alex d’castro – y me pregunto 9. Tony Vega – haremos el amor 10. Andy Montanez - josefina

First notebook entry: Introducing myself Hola, me llamo Alejandro, yo studiar arhitektura para de Danimarka. me gusta habla espaniol i necesitio compredne habla en sur amercanas. gracias amigos!