Hope this helped! As with most string instruments, you should rosin your bow every time you play! You might want to gently blow or knock off any excess from the bow after you've rosined it.
How do I know if my bow has enough rosin?
Optically: you can scrape across the bow hair with the thumb nail. If there is some rosin sticking to the thumb nail, then there currently is enough rosin on the hair. Rosin ages and becomes sticky with time. Approximately every two years, you should buy a new rosin, so it is always available in the best quality.
How long does rosin last on bow?
Additionally, your rosin should be soft enough that the bow leaves a dusty path when drawn across the block. If it remains shiny and free of dust, you are unfortunately working with old rosin. Generally, a block of rosin will last for anywhere between six months and two years.
Can you rosin your bow too much?
Too much rosin will make the bow feel stickier as it moves across the strings. Excess rosin can generate a cloud of rosin dust as you play, and the sound will be harsh and scratchy. Rosin debris will fall onto the surface of the instrument and, over time, can damage the varnish and the wood.
How much rosin do you need to put on a new bow?
The right amount of rosin allows easy movement of the bow, rich tones, and no excess. As a rule of thumb, it typically takes four or five strokes of rosin on the bow hair to achieve this.
How often should I put rosin on my violin bow?
Typically, students should re-apply rosin every four to six playing hours, which equals about two times per week.
Can you run out of rosin?
While there isn't an expiration date on most boxes of rosin, there are a few ways to tell if your violin rosin has gone bad. If it remains shiny and free of dust, you are unfortunately working with old rosin. Generally, a block of rosin will last for anywhere between six months and two years.
How do you make rosin stick?
https://www.youtube.com/watch?v=9JCKdjkVtr0
How do I know if I put too much rosin on my bow?
Here are two possibilities: Acoustically: you shall strike the bow across the strings as a test. If the bow does not slide easily and produces no sound or only a faint, thin sound, then the bow hair does not have enough rosin. But if the bow is very scratchy, then it may have gotten too much rosin.
How do you apply rosin to a bow?
https://www.youtube.com/watch?v=2bwxJP-QIMU
How do you rosin a violin bow for the first time?
https://www.youtube.com/watch?v=q8UsIwa-BhQ
How long should you rosin a new bow?
In most situations, you'll only have to rosin the bow per 3-5 hours of play time. People with stringed instruments that have thicker gauge strings like basses, cellos and even violas, will probably end up rosining their bows a little more frequently than violinists.