Adobe Soundbooth was a digital audio editor by Adobe Systems Incorporated for Mac OS X, Windows Vista and 7. Adobe has described it as being "in the spirit of SoundEdit 16 and Cool Edit 2000".Source: http://en.wikipedia.org/wiki/Adobe_Soundbooth
Shown in the image below, I have laid out my vocal and piano track. I have cut and aligned, and used bezier and linear fading to introduce them. This mixdown was used in my client pitch session. I will use a similar method in the final piece.
Click image to enlarge
Click image to enlarge