fromtheglossypages.com

Nowadays, a percussionist can be replaced by a drum machine, an electronic musical instrument which is able to mimic percussion instruments. It covers a wide range of music genres and is handy to have whenever a percussionist is needed. The machines provide a great range of typical percussion sounds that were precisely made to resemble the originals. Also, they can be fine-tuned with the well-designed controls, permitting users to set the machines according to their preferences. These Alesis DM5 machines were initially created in the late 1960s as an accompaniment to organists, and were known as rhythm machines. The pioneer drum machine that enjoyed commercial success was the Rhythm Ace, produced by the company, Ace Tone, which was later known as Roland.

For elementary school students there are easy-to-follow explanations of lithography; portrait sculpture in clay; dinosaur bone clay relief sculpture; polymer clay bead making; prehistoric cave art; and even making clay skulls to celebrate Mexico’s Day of the Dead. For high school students there are more advanced art projects such as multi-color printing; sculpting insects with polymer clay; free jewelry making catalog General programs for all students include: wall mural project using ceramic tiles; historical and practical how-to discussion of bisque tile murals; glaze decorating flower pots; papermaking and sculpture; and easy-to-make dinnerware. As an example, the dinnerware lesson is a PDF file with step-by-step photographs and explanations of using textured slab. 

Another factor that affects the quality of a violin is the internal damping of the wood. This strongly affects the multi-resonant response of the instrument and the overall background at high frequencies. In particular, the difference between the peaks and troughs of the resonant response is determined by the quality-factor of the resonances. This largely depends on internal losses within the wood when it vibrates: only a small fraction of the energy is lost by acoustic radiation. The strongly peaked frequency response of the violin has a dramatic influence on the sound produced when “vibrato” is used. In this playing technique, the finger stopping the string is cyclically rocked backwards and forwards, periodically changing the pitch of the note. Because the response has such strong peaks and troughs, any change in pitch also produces cyclic variations in the overall amplitude, waveform and spectral content of the sound

Kevin and Carol called last night for help with their computer again. It’s really hard to do that sort of thing over the telephone, and not be able to see their screen, but we did the best we can.

The main thing they were wanting to do was to find this series of video podcasts they’d learned about at one of their senior citizens meetings. It would have been nice if whoever had told them about it had also given them something in writing with the URL.

We finally found it in Google, but it took quite awhile.

Anyway, I think we got ‘em squared away. From what I could tell, it looks like the series is really pretty good.