INPUT ARTICLE: Article: While you can play an electronic musical instrument or compose music on computer without being able to read music, some knowledge of musical structure will help you understand how to make better arrangements and spot mistakes in the composition you’re working on. Some of the music theory that can help you is covered in the wikiHow article “How to Make Music.” Even if you’ve tried it before you bought it, spend some time experimenting with your equipment before you take on a serious project. You’ll have a better idea of what it can do and perhaps come up with a few ideas for projects to do with it. Each musical genre has certain elements it is associated with. The easiest way to learn those elements is to listen to a number of songs in each genre you’re interested in to see how they make use of these elements:  Beats and rhythms. Rap and hip-hop are noted for heavy, driving beats and rhythms, while big band jazz is noted for bouncy, syncopated rhythms and country music often features a shuffle beat. Instrumentation. Jazz is noted for its use of brass (trumpet, trombone) and woodwind instruments (clarinet, saxophone), while heavy metal is noted for loud electric guitars, Hawaiian music for steel guitars, folk music for acoustic guitars, mariachi for trumpets and guitars, and polka for tuba and accordion. However, many songs and artists in one genre have successfully incorporated  instrument sounds from another genre, such as Bob Dylan’s adopting the electric guitar for folk music at the 1965 Newport Folk Festival, the use of mariachi trumpets to open Johnny Cash’s “Ring of Fire,” or Ian Anderson’s flute-playing as lead musician for the rock group Jethro Tull.  Song structure: Many songs with vocals played on the radio begin with an introduction, followed by a verse, then a chorus, another verse, repeat the chorus, a bridge (often an abbreviated verse), the chorus, and a closing (called an “outro”). In contrast, most of the instrumental “trance” music played in dance clubs begins with an introduction, followed by a melody hook that builds to a point where all the elements of the song are played together, concluding with a fading outro.

SUMMARY: Learn some music theory. Learn the capabilities of your instrument or software. Familiarize yourself with the musical genre(s) you want to compose in.

In one sentence, describe what the following article is about: The tag or label on your jacket should state the materials it is made from and their relative proportions. A jacket that is 100% nylon should be relatively easy to dye, but if it is made from a synthetic blend that includes other materials (such as polyester or acetate, for example), then it may be more difficult to get the dye to stay.]  Even if the jacket is made of a nylon blend, it will usually accept the dye if at least 60 percent of the jacket is made of nylon. Nylon blends are still dyeable as long as the other materials will also accept dye; examples include cotton, linen, silk, wool, ramie, and rayon.  Some nylon is treated or coated for durability or stain/water resistance; this can prevent the material from accepting dye, so check the jacket label for this information, as well. Even if your jacket is made of easily dyeable materials, its original color will significantly impact your coloring options. You should be able to dye a white or light grey jacket without much trouble, but if the jacket is another color then you might have some difficulty, especially if that color is already dark or intense.  A white or off-white jacket will be easiest to dye, but you might also be able to dye over a light pastel color like a baby blue, soft pink, or buttercup yellow. Be aware, however, that the current color will alter the final appearance of the dye. If you do attempt to dye a jacket that is already colored, make sure your dye is bright or dark in order to cover up the old color. Most standard chemical dyes can dye nylon, but you should make sure the one you choose will do this before you buy it. Most dyes will include information on the packaging about compatible materials; if you don't find this, check the manufacturer website.  Standard Rit dye works on both natural and synthetic fibers, but some brands have separate formulas for each type of material.  Always read the manufacturer’s instructions to verify that the procedure is doable for your particular jacket. If the manufacturer's instructions differ from those described here, follow the manufacturer. Many (though not all) fabric dyes come in powder form and must be mixed with water for dyeing. Dyeing is a very messy process and may stain certain surfaces. Protect the entire work area you plan to use by covering it with newspaper, plastic sheets, or some other drape or material that will not soak through if it becomes wet.  Keep clean paper towels, a household surface cleaner, and a source of clean water nearby. If any dye splashes where it shouldn't, you can use these to clean it off before it sets in. Make sure to also protect your own clothing and skin by wearing rubber gloves, an apron or coveralls, and safety goggles. Even with all this protective gear, it is best to wear clothes you won't mind getting stained. Anything that can be easily removed from your jacket and that you do not want to dye should be taken off prior to dyeing. For example, if your jacket has a zip-out liner that you don't need to color, take it out. The same goes for detachable hoods, zipper pulls, etc.  This will help ensure that you don't use up any of the dye on parts of your jacket that won't be seen or which you want to remain their original color. If any removable parts of your jacket are black, take these off whether or not you wish to dye them -- dye will not show up on black nylon, anyway. Check your jacket pockets for any items that may have mistakenly be left inside. You don't want to end up with the melted remains of a cough drop or lip balm coating the inside of your pocket! Immediately before you plan to dye it, completely submerge your jacket in warm water. This is recommended because wet fibers will absorb dye more evenly and thoroughly, resulting in a more professional-looking color job.  Use a large bucket or deep sink for this task. Smooth out any wrinkles in the jacket material once you remove it from the water. This will help ensure that the dye evenly coats all surfaces of the jacket once you begin the dyeing process.
Summary: Check the jacket material. Consider the jacket's color. Choose the right dye. Protect your workspace. Remove jacket accessories. Soak your jacket.

INPUT ARTICLE: Article: Your doctor will examine your skin for wheals and flare to determine which substances you are allergic to. They will have the training necessary to determine when your skin is irritated and when you are having an allergic reaction due to the substance. If you have very large wheals due to an allergen, you may have a high level of sensitivity to a substance or food. Your doctor will let you know which substances you tested positive for in terms of an allergy. It is possible for an allergy test to be inaccurate the first time around, causing a false positive or a false negative. If you want to be sure you are allergic to certain substances, you may ask your doctor to administer another round of skin tests. Usually if you test positive for an allergy to a substance more than once, it means you are allergic to it. Once you determine what substances you are allergic to, you should do your best to avoid interacting with them. This may mean cutting certain foods out of your diet or switching your skin care products so you do not expose your skin to allergens. Your doctor should tell you how severe your allergies are to certain substances so you do not put your health at risk.  For example, if you have a mild allergy to cats, your doctor may recommend you stay away from cats and take allergy medication before you interact with cats. Or if you have a severe allergy to peanuts, your doctor may suggest you avoid eating peanuts and confirm foods do not have peanuts before you eat them. For some allergens, you may have a very minor reaction, such as a rash or skin irritation. But if you continue to expose yourself to the allergen, your reactions may get worse over time. Try to avoid being around any allergens so you stay healthy.

SUMMARY:
Allow your doctor to interpret the results of the test. Get a second test done if you want to be sure of your allergies. Adjust your diet or lifestyle to avoid contact with allergens.