Rhythmic Auditory Stimulation and Walking Speed in the 6-minute Walk Test

Inclusion Criteria: * Able to provide signed informed consent. * Able to read and understand Danish or English. * Diagnosis of mild to moderate MG (Able to provide signed informed consent. * Able to read and understand Danish or English. * Diagnosed with generalized mild to moderate myasthenia gravis (I-IV on the Myasthenia Gravis Foundation of American Clinical Classification, MGFA). * Documented history of acetylcholine receptor (AChR) or Muscle Specific Kinase (MuSK) antibody positive, or abnormal repetitive nerve stimulation testing (decrement \> 10%) on electromyography (EMG) or abnormal single fiber EMG (conduction block or jitter) or based on their clinical history and symptom improvement with acetylcholinesterase inhibitors. * Ability to walk \> 60 meters in a 6MWT. Exclusion Criteria: MGFA grade V disease * Other disorders that are not related to MG, or drugs, that interfere with muscle strength, walking ability, balance and fatigue (e.g. heart failure). * Serious medical illness (e.g. uncontrolled insulin dependent diabetes mellitus, symptomatic coronary artery disease, and cancer). * Dementia or pregnancy. * Unspecified reasons judged by the investigator