Though music therapy practice employs a large number of intervention techniques, some of the most commonly used interventions include improvisation, therapeutic singing, therapeutic instrumental music playing, music-facilitated reminiscence and life review, songwriting, music-facilitated relaxation, and lyric analysis. While there has been no conclusive research done on the comparison of interventions (Jones, 2005; Silverman, 2008; Silverman & Marcionetti, 2004), the use of particular interventions is individualized to each client based upon thorough assessment of needs, and the effectiveness of treatment may not rely on the type of intervention (Silverman, 2009).