Several topics in the study of Alfvén waves and their interaction with energetic particles are reported. (1) In the second stability regime a new Alfvénic mode ( a-TAE) has been found that exists even in the continuum with negligible intrinsic damping and its destabilization by energetic particles is discussed. (2) The alteration of the continuum due to pressure compressibility is found to set a lower frequency limit on the Cascade modes at the value ÷ 2CS/R. (CS is the sound speed). (3) Neutral beams planned for ITER is found to contribute to a linear instability drive that is nearly equal to the alpha particle drive and the inferred current generated may allow spatially extended TAE eigenmodes to be excited. A quasilinear model is used to estimate alpha particle losses. (4) The rate of frequency sweeping of TAE modes excited on MAST has been used to estimate internal fields leading to results that are compatible with Mirnov coil mearsurements. (5) A numerical model, developed to attempt to understand damping due to kinetic Alfvén excitations of TAE modes, did not produce KAW's in the plasma center and the dominant damping mechanism came from the continuum resonance arising from the decrease of density at the plasma edge.