Patients in this group received routine care and no music application was performed.

The patient information form, vital signs registration form, and state-trait anxiety scale were administered to the patients in the music group while they were in the ward before being sent to the CAG laboratory. Afterward, Rast, Acemasiran, and Huseyni music from Classical Turkish Music modes were optionally offered to the patients, and before the CAG procedure (while the patient was waiting for the procedure in the CAG laboratory), the music preferred by the patients was played with headphones for 15-20 minutes in order not to disturb other patients. After CAG, 15 minutes after the patient arrived at the service, he listened to music for 15-20 minutes. Then, the vital signs registration form, state-trait anxiety scale, Perianesthesia Comfort Scale-PCS" and Patient Satisfaction Survey on Nursing Care Quality (PSSNCQ) were applied.

Rast, Acemasiran, and Huseyni from Classical Turkish Music modes were optionally offered to the patients in the music group, and the patient's preferred music was listened to through headphones for 15-20 minutes before the CAG procedure. Following the interviews, musical genres were arranged as instrumental, without words, at 70 decibels in terms of rhythm and duration, at approximately 60 metronomes per minute, and were played according to the person's preference. Instrumental music was loaded onto the portable MP3 player provided by the researchers.

Numerical Rating Scale was used to measure the pain intensity of the patients. This scale, which aims to determine the pain intensity of patients regarding the procedure area, aims to explain the patient's pain with numbers.It is stated that numerical scales are more widely adopted by patients because they facilitate the definition of pain intensity, facilitate scoring and recording, and are useful in floor and ceiling effect assessment. The form ranging from 0 to 10 was used in the research. In the form, 0 points are considered "no pain", 1-3 points are considered "mild pain", 4-6 points are considered "moderate pain", and 7 and above points are considered "severe pain".

It will be measured by the researcher responsible for the application using an infrared thermometer.

The measurement on the arm, which is not operated with a digital blood pressure meter, will be made by researcher responsible for the application.

The measurement on the arm, which is not operated with a digital blood pressure meter, will be made by the researcher responsible for the application.

It will be measured by the researcher responsible for the application with a pulse oximeter in the unprocessed arm.