There is a difference of opinion among scholars. The majority hold that musical instruments are prohibited except for simple drums at weddings. However, some scholars permit certain types of music. It's best to consult a local scholar for detailed guidance.

Yes, you may pray with shoes on as long as they are clean and free from impurities (najasah). The Prophet ﷺ prayed in his shoes and encouraged others to do so, differing from the Jews.

Common things that break wudu include: urination, defecation, passing gas, deep sleep, losing consciousness, and touching private parts without a barrier.

If you pay the full balance before interest accrues, many scholars consider it permissible. However, if interest is charged, it becomes prohibited (riba). Consider using debit cards or Islamic financing alternatives.