If you have spotted a calculation error, found a broken link, or have a question about the book or the music, I would like to hear from you. The best way to reach me is by email:
I usually reply within a few days. Because I work at sea, a reply can take a little longer during a long voyage.
Reporting a calculation error
Please include:
- the address of the page, for example deepsonicecho.com/calculators/mortgage-calculator
- the values you entered
- the result you got and what you expected
- your browser and device, for example "Chrome on Android" or "Safari on iPhone"
Writing "possible calculation error" in the subject line helps me find it quickly. Calculation errors are always fixed first.
Ideas for new calculators
Suggestions are welcome. I am most likely to build calculators that do one clear job, run entirely in the browser, and are useful to many people.
Music, book and press
For questions about the songs, the book Anima, interviews or reviews, use the same address. I do not sell sponsored posts, paid links or advertising placements.
Your privacy when you write
Emails are kept only as long as needed to answer, and are never shared or used for marketing. See the privacy policy.