I answered it but found it difficult to answer and I fear my answers are probably misleading. As an improviser I haven't done much that could be called "practice" at all for years. For instance, I gave an answer of one hour a week as my present level, which is strictly true, as representing true technical practice on my clavier. No mention is made of the many hours I spend at the actual piano improvising or playing real music.
Topic: Practice Routine Survey