Worry on its own won't solve the problem you are faced with: no amount of worrying about darkening clouds will stop an approaching rainstorm, for example. However, this stressful emotion can lead to positive outcomes if harnessed in a productive way. Over time, sweating the small stuff can be turned into dealing effectively with the small stuff.  Worry can focus your attention.  Worrying about what an approaching storm will do to the clothes you just hung out to dry won't stop the storm, but if it compels you to bring in the clothes before they blow all over the yard, the worry will have had a positive result. Worry can lead to action. Stressing out about the approaching due date for an essay won't make the essay write itself, but it can lead you to get down to work and finish it in good time. Worry can help you be prepared. On its own, worrying about your old car breaking down won't fix its engine; however, if this leads to a visit to the mechanic for a tune-up, the worry will have been transformed into something more productive. Concentrating on what matters most and working towards a balanced life will help you to deal with common stresses and take more control of each day.  Making to-do lists each day helps to put responsibilities in perspective, and can help you to concentrate on the most important tasks. It is a good idea to organize daily responsibilities from most important to least important, and to break down larger tasks into smaller, more manageable parts. Focus on quality of work, not quantity. Spending too much time on your work or daily tasks can lead to frustration and even lower productivity. Aim to do something well, rather than several things half-heartedly. Avoid procrastination. Putting off responsibilities only increases stress, so make every attempt to tackle problems in good time. If you find yourself stressing out over small matters for an inordinate amount of time, allow yourself five minutes of worry for each problem and time it. This will help you to calm down, focus on the problem, and quickly find a reasonable solution. For example, a computer suddenly freezing in the middle of a project will naturally be stressful - if allowed to fester, such stress could ruin a day. However, set aside exactly five minutes to worry about the computer; before those five minutes are up you will most likely have found the technicians number and taken a positive step toward solving the problem. After five minutes, move on to other work. Our words are intertwined with and affect the parts of our brain that control both the reward system and unhappy, sad and angry thoughts. Speaking positively in an annoying or stressful situation triggers the reward system, and will in fact lead to more positive thinking. For example, if you feel slighted or disrespected by a co-worker who isn't impressed with your work, don't sweat it - instead, tell them you love their new shirt, or comment on the beautiful summer day. Speaking positively in such situations will lead to less stress and more positive thoughts. Forgiving small slights and annoyances (as well as larger offences) can diminish their effects, relieve stress and anger, and allow you to focus on the positive aspects of each day.  Forgiving can be very difficult, and it will take an active commitment on your part to learn to do so. Thinking about the importance of forgiving and its potential impact on your life, as well as the effects of holding grudges on your well-being, will help to provide perspective and allow you to release pent up stress. Research has shown that the simple act of writing down negative thoughts on a piece of paper and then throwing the paper away diminishes the hold these thoughts have over a person. When you become annoyed, frustrated or stressed over a small matter, try writing the thought down and disposing of it by throwing it into the wastepaper basket. Set aside time every day to write down all of the friends, events and ordinary things that you feel grateful for that day. Often, gratitude must be developed and practiced, and a gratitude journal is the perfect place to start. Research has shown that practicing gratitude (such as keeping a daily journal) has a number of positive effects, including increased optimism and joy, and can make you more compassionate and forgiving.
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One-sentence summary -- Understand that worry can be helpful. Manage your time. Time yourself. Speak positively. Learn to forgive. Write it down and throw it away. Keep a gratitude journal.

Article: Once you feel comfortable with straightforward rhythms, it is time to start playing with shorter, but more complex, phrases. Duplets are simply two sounds thrown quickly together ("da-DA!"), and triplets are three sounds ("BEEP-da-BOP"). Instead of using straight quarter notes, where you have one sound per beat (1, 2, 3, 4), start stringing together these other phrases, leaving spaces in between them for a bouncy, swinging feel.  Hold some notes for three beats, cram 10 notes into two beats, and then leave some silence before launching back in. Rhythmic variety is about playing with the beat to create tension and surprise. Alternating different types of rhythms is a great way to craft a complex, enjoyable scat solo without crazy notes or vocal range. Check out both Louis Armstrong and Ella Fitzgerald, for example, on "Stomping at the Savoy" for a master class in rhythmic variation. An extension of rhythmic variation, this is when you transcend the "written" rhythm and get into the song with improvisational fervor. Most scatting is over a swing feel, where the 2nd and 4th beats are emphasized. Think of counting out your "1 and, 2 and, 3 and, 4 and" with a little extra emphasis on these two beats. If you're going to hit a high note, or pause and come back in, make it on the swinging beats. Great scat singers, like any great soloist or musician, are locked into the underlying chords and melody of the song they sing over. They know when chord changes are coming, and adjust their melody right in time with the rest of the band. Listen to the song several times until the chords' feel natural, and you know exactly what your band is doing behind you. If you're hoping to play professionally, there are a few progressions you should know:   12-Bar Blues-- the most common progression in Western Music. No matter what the key, the chords will always change in the same order, meaning you can quickly scat to any 12-bar blues once you know the form.  I Got Rhythm -- known as the most covered chord progression in jazz, these changes are found in hundreds of songs, including popular music. Listen to versions from Duke Ellington to Django Reinhardt If you are classically trained, there is no reason to abandon your skills just to start scatting. Run through your exercises, scales, and warm-ups with improvised syllables and sounds, and start putting your vocal scales to music. As a warm up, read music but ignore the lyrics, trying to sound out just the notes of vocal, brass, and woodwind sheet music. Listen to Ella Fitzgerald closing out "Tenderly," a dear, calm, and loving song, with a deep and almost monstrous scat sound. And yet, it fits, complementing her smooth tone with an unexpected burst of passion and power. Scatting isn't about sounding "human." So, the further you can modulate and adjust your voice to sound more instrumental the better scat singer you'll become.
Question: What is a summary of what this article is about?
Introduce a little rhythmic variety with duplets and triplets. Get a little swing behind your scatting. Learn the chord progressions to improvise like a jazz singer. Scat through your vocal solos to bridge classical singing and scatting. Get a little weird with tone, voice, and coloring.