Q: Many musicians use gear racks, usually a reinforced metal box with removable panels on the front and back.  The front side of the rack, when open, has two vertical rows of threaded screw holes on the sides, set 19 inches (48.3 cm) apart: the rack mount standard.   Like a head-and-cab setup, a rack-mounted guitar amplifier rig separates the amplifier components and the speaker cabinets. However, rack-mounted heads can be broken down into two categories: the preamp and the power amp. Both heads and combos have these components as well, but rack units make it practical to treat them as separate items. Most major amplifier manufacturers, including Marshall, Carvin, Mesa-Boogie, and Peavey make rack-mountable amp rigs. This is the initial amplification stage: in its basic form, a preamp boosts the signal so that it can effectively drive the power amp stage. Higher-end preamps will feature various tone-shaping features, including equalization, variable tube configurations, and more. This is connected to the preamp, takes the signal the preamp shaped, and gives it serious, speaker-driving power. Like heads, power amps are available in different sizes, from a minimum of 50 watts to monster 400W power amps.  As many power amps as you want can be connected in a daisy chain or to different pre-amp outputs to boost the power of the signal, as well as possibly blend the tonal influences of two different power amps. A rack allows you to mix and match products by different manufacturers and find a tone that is distinctly yours! In addition to the preamp and power amp, there are a lot of great products that can be mounted right on the same rack with your amplifier—reverbs, delays, EQs, and other sonic delights.  Racks frequently have caster wheels, making them very easy to roll around, and having a rack can also simplify setup: your components are always ready to plug in to as soon as you wheel your rack onto the stage and power it up.     {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/4\/49\/3343-18b1.jpg\/v4-460px-3343-18b1.jpg","bigUrl":"\/images\/thumb\/4\/49\/3343-18b1.jpg\/aid3343-v4-728px-3343-18b1.jpg","smallWidth":460,"smallHeight":345,"bigWidth":"728","bigHeight":"546","licensing":"<div class=\"mw-parser-output\"><p>License: <a rel=\"nofollow\" class=\"external text\" href=\"https:\/\/creativecommons.org\/licenses\/by-nc-sa\/3.0\/\">Creative Commons<\/a><br>\n<\/p><p><br \/>\n<\/p><\/div>"}  Finally, racks are uncommon, and will attract attention. People will be impressed if you wheel a rack rig into rehearsal or performance, but beware—they will expect you to be a seasoned guitarist, or at least be able to effectively use your rack. Don't bring your rack anywhere unless you know how to get those pre-amps and processors to do exactly what you want them to do. Professionals axe masters like Robert Fripp, The Edge, and Kurt Cobain have favored rack rigs.
A: Rack it up. The preamp. The power amp. Gain the advantage.

Q: There are lots of ways you can get your body moving and get your mind off your feelings of loneliness: try exercising, dancing to your favorite songs, jumping on your bed, or learning karate on YouTube.  Exercise gives you endorphins, which boost your mood and may help improve your feelings of loneliness. Just remember not to exercise too close to bedtime or your body and brain will have a hard time winding down and settling into sleep mode. For some people, evening workouts give them the freedom to sleep in a little later while still maintaining their health. Doing something fun and funny—like playing great music and dancing in your underwear. This will get you laughing, which is a great way to start feeling good instead of feeling lonely! Nights can be notorious for bringing out your most negative emotions, especially when we are all alone. However, you can counteract that by seeking out positive things to make the loneliness more bearable. Browse Pinterest or Google for inspirational quotes to paste as a wallpaper on your phone or profile photo on social media. Read an autobiography of a successful person you admire. Or, watch an uplifting and educational TED Talk. Read a great book, watch a favorite movie, binge watch a television show, or surf the internet. All of these options will tune your brain onto a different channel and focus your attention away from the fact of your loneliness. When you feel sleepiness start to creep in, then you can head to bed. Sometimes the best thing to do is get out of the house (weather permitting). A little bit of distraction and a change of scenery can go a long way toward making you forget about how lonely you’re feeling. You might even see someone you know and have a quick chat. Or, you may stumble upon something interesting along the way. Consider venturing into unknown territory. For example, take a drive to a part of town you’re not familiar with or walk to a neighborhood you don’t usually visit. Just be sure it's a relatively safe area beforehand. This way you’re experiencing something new as part of curing your loneliness, which may give you an extra dose of distraction. One expert suggests reading up on loneliness as a way of feeling less alone. The more you learn about loneliness and how common it is, the less lonely you may feel. When you know that even a difficult, painful feeling you are having is shared by others, it makes that feeling a little less terrible. Look at resources online or check a book out of the library. Keep these resources on hand for when you’re feeling particularly bad. You can always pull up those motivational quotes you like and read over them to give yourself a little pep talk when loneliness strikes. One good example of a practical guide about the subject is Emily White’s Lonely: Learning to Live with Solitude. Realize that you are actually really good company for yourself. You don’t need to be around other people or doing exciting things to be happy. While being with others is great, it's also important to learn to enjoy solitude. Spending time alone can be very valuable. If you can embrace being by yourself—and embrace your loneliness—you may end up feeling less lonely.  When you find yourself feeling lonely, take time to relax and close your eyes. Focus on your breathing and the feelings of each part of your body. Try to be in the moment, just focusing on yourself. Try reciting this self-compassion verse to remind yourself you are not alone in feeling lonely and to treat yourself gently when you feel this way: This is a moment of suffering. Suffering is a part of life. Let me be kind to myself in this moment. Let me give myself the compassion that I need.  This technique might not work for everyone. Some people will find it too difficult to relax while concentrating on themselves in the midst of feeling lonely, preferring a distraction instead. This is completely fine and normal.
A: Get moving. Find inspiration. Lose yourself in another world. Go for a drive or a walk. Get educated. Embrace being by yourself.

Q: It's the button with an image of a pen drawing a curve line. You can draw anywhere on the image. You can adjust the curve after you draw by clicking and dragging the blue dots (handles) at the end of the line, or the green dot in the center of the curve. Click the button with three lines of different thicknesses and styles. You can also select different line styles, such as dotted lines, arrows, and textured lines.
A:
Click . Draw a line or a shape. Adjust the curve. Change the line thickness.