PEACE: Comparing Chronic Pain Treatment Options

Inclusion Criteria: * English speaking * Age \>/= 18 years or older * Having musculoskeletal pain, defined as regional (joints, extremities, back, neck) or more generalized (fibromyalgia or chronic widespread pain) * Having a pain rating of 4 or greater in worst pain on a 1-10 numerical rating scale in the preceding week (Patients with a neuropathic component to their pain that involves the extremities or back will be eligible) * Having had pain for at least 3 months and at least 15 days with pain in the preceding 30 days * A diagnosis of cancer with no restrictions placed on type of cancer, other than that patients with metastatic disease will be excluded. Eligibility criteria are not restricted to MSK confirmed biopsy/diagnosis. Participating institution's testing is sufficient for other study sites. * Complete active treatment (surgery, chemotherapy, and/or radiotherapy) at least one month prior to study initiation (patients on continued hormone treatment will not be excluded). Exclusion Criteria: * Have non-musculoskeletal pain syndromes (headache, facial pain, chest pain, visceral abdominal pain) if these are the sole source of pain, but can be present as co-morbid conditions as long as a patient has a primary musculoskeletal pain condition defined s above. * Inflammatory arthritis that require disease modifying drugs (e.g. rheumatoid arthritis) * Phantom limb pain * Patients with a history of metastatic cancer who are not currently NED * Have a pending pain-related VA or social security or worker's comp disability claim by self-report * Have an implanted electronically charged medical device