A semitone, also called a half step or a half tone, is the smallest musical interval commonly used in Western tonal music, and it is considered the most dissonant when sounded harmonically. It is defined as the interval between two adjacent notes in a 12-tone scale (e.g. from C to C â¯).9-tone equal temperament distinguishes between the chromatic and diatonic semitones; in this tuning, the chromatic semitone is one step of the scale (play 63.2 cents (helpÂ·info)), and the diatonic semitone is two (play 126.3 cents (helpÂ·info)).
How to install underlay for laminate flooring. Preparing the floorâs surface to install underlay. The first step of the process is to prepare properly the floorâs surface, before installing the underlay and laminate flooring.Consequently, remove all bumps and other flooring irregularities and make sure that the surface is completely dry.he first step of the process is to prepare properly the floorâs surface, before installing the underlay and laminate flooring. Consequently, remove all bumps and other flooring irregularities and make sure that the surface is completely dry.
You can then begin putting down underlay padding. Step #4: Install Laminate Underlayment. If your floor is over concrete the first job is to lay a polyethylene film down, then the first row of foam underlayment.(As discussed earlier this could be accomplished by using a 2-in-1 product that combines vapour barrier and foam in one product.).tep #2: The Subfloor. Most laminate flooring manufacturers have a requirement that the floor must be flat within a 3/16 gap in 10'. Thus if it is a wood subfloor you may have to consider sanding off the high points if this can be done without affecting the structural integrity of the subfloor.