Good interview from the early days of the interwebs:
http://www.surfermoon.com/interviews/asher.html"At one point, I left advertising proper -- which is to say, I stopped working directly for advertising agencies and became a supplier to them instead. With a very gifted partner named John Bahler, I formed a jingle writing and producing company and supplied jingles for lots of advertisers and agencies in the U.S. and abroad. John is a very talented arranger, vocal arranger and composer who did vocal arranging for many top groups including the Jackson Five. John is probably best known throughout the music business as a "first call" studio singer. For many years he was the voice -- or one of a group of voices -- you would have heard singing on dozens of radio and TV commercials each day. He also sang on many of the most popular opening themes for TV shows. (If anyone remembers a show called "Love American Style", that's a good example of John's lead singing.)
John and I wrote a lot of songs together, too. We did many of the songs that were used on the Partridge Family show, for example, since John and several other studio singers were, in fact, the singing voices of the Partridge family.
I also wrote a number of songs with Roger Nichols, who some people will know wrote some terrific songs with Paul Williams, many of which were recorded first by the Carpenters. We were all together at A&M records/publishing in those days. I used to hang out with Roger and Paul and, in fact wrote several songs with both of them. At that time, I continued to write for the advertising business, which gave rise to the following rather ironic happenstance."