I congratulate everyone in this thread giving it a go. I've read music since I was.. what.. 8 or so. My sight-reading skills are, I suppose you'd say reliable if I'm wearing glasses.... and playing something other than uke. When I picked up the uke, I did what we all do, learned chords and tabs. I didn't want to be bothered about plucking through scales slowly. And now? There's some sheet music I really want to go through, and this measure-by-painstaking-measure is intolerable. I should have done it from the start.
Well at least it's not bass clef. I still have to mentally "This note on the 2nd space looks like an A but the actual name is it's third in treble, C." - this hardly ever matters unless finding the chords as I slowly go measure by measure and it's piano music. Yeah, I never really did piano.
To comment in general on sight-reading though, you generally never read the measure you're actually playing (more or less, depending... in a perfect world), and I certainly wasn't taught to follow the general shape of the music. I was taught to pay close attention to subdividing the tempo. To be aware of what should be happening on the downbeat, and the upbeat. This matters with complex syncopation and funky time signatures. If you're not careful, something that should be on the upbeat is happening on the downbeat because you forgot how to count. I was also taught that if you can't sing or hum it, you can never play it. I can hear my band director yelling at me about saying this is only sometimes important when it's all the time important. Then again one of his favorite things to shout was that there's no excuse for a wrong note. Nah, we know there are plenty!
It became easier when I took up singing, because my first choir director was just as much a stickler for sight-reading as the band directors were. How he taught it was to look at the key, and then pencil in the solfege. Using the solfege makes you aware of the intervals between the notes, and if you can get the tonic, then you've got the song. * Also learned to resent atonal stuff at this stage.
But sight-reading only comes after you can comfortably read music without having to put so much thought into what note is what and what key has which sharps or flats, and to what the meter means. If only I hadn't learned it with uke bass-ackwards.
If you're like me and you already know your key signatures and notation values, and note names and all that, there's just no short cut is there? You have to learn the scales. Ugh. That Lil'Rev book sounds like a really good idea.