Hello.
I have another sight-reading query.
Does anybody know of effective methods to increase one's ability to read ahead - that is, to read the bars ahead, while playing the current bar?
This is an answer to your query which suggests/proffers a simple or detailed answer. It does not!
Therefore, I re-post a much re-stated answer to your OP:
[From my post of March 14th, 2014:
"When I was young, I could memorize any new piece for my next lesson, so I never learned how to properly sight read . . . So, at the age of 50, I made up my mind that I could do it . . .
Therefore, you need to realize that the hand/eye motor skill of basic sight reading is exactly the same as learning how to type. It is familiarity with the keyboard, so you can get around without looking down.
As a suggestion, I recommend that the first book you get is "You Can Sight Read Vol. I," by Lorina Havill who taught this subject at Juilliard for years. It has exercises where you "Blindly" play single notes, double notes, triads, and then seventh chords up and down the piano in octave sections. It is available on-line or at most music stores.
Then, you start out as slow as you can in order to obtain accuracy. Even though it doesn't seem possible at first, but if you practice this every day for just a few minutes, you eventually get to where you can feel your way around the piano. Once again, if you do not have a true/blind chord sense (without looking down, like the typewriter), then the rest is useless.
Stated plainly, it does not do any good to read ahead if one does not know what the harmonic structure of the piece is, and accordinlgy what is to come next.
Next (and most importantly), there is a ten book series entitled "Four Star Sight Reading and Ear Tests, Daily Exercises For Piano Students," by Boris Berlin. These are thin paperback books that contain very short pieces at various levels of sight reading, which are required/extensively and used by the Royal Institute of Music (UK).
They have a mixture of all genres, including church hymnal scores. Also, they have short sight singing drills and rhythmic practice sections, which are essential to sight reading.
I recommend that you get volumes 7-10. And, they are very inexpensive.
Next, set your metronome at the lowest possible setting where you can read without stopping and then read for about 20 minutes a day, and no more. If you go more than that, it will turn into drudgery and you will hate it. A great idea is start every practice session by practicing your sight reading.
After you have read through to volume 10 at a slow and steady speed. Then, go back to volume number seven and then repeat the same process again (slightly increasing the tempo)and again. This is repeated until you have reached your desired level of competency.
(The reason this text is used at the Royal College Institute is that it works!) Accordingly, in about a year or two, your sight reading will have improved by about 300%.
A good basic yardstick is being able to sight read through Mozart or Haydn piano sonatas at a moderate tempo. From there, you can decide on whether you want to study accompanying and increase your ability accordingly.
So (to review), practice the first Lorina Havill book to develop your ability to get around the keyboard without looking down. Next, please then utilize the Berlin "Four Star" series to practice actual sight-reading."]
Per the OP, this method works. For the rest of you, please respond by PM if you have any questions.
Thanks, and in my opinion, this subject is pedagogically a very important one.