On bouncing the bow:
There is a shameful paucity of examples demonstrating spiccato with the underhand/german bow hold. Worse than the lack of public and free resources there is also a dearth of clear references in the common pedagogical literature.
Perhaps in the paid version of the online resources there are masterful explanations but the pay wall prevents a barrier.
So here are some observations and thought:
Resources: Jeff Bradetich "Double Bass: The Ultimate Challenge" ; Barry Green "Advanced Techniques of Double Bass Playing" ; Dennis Whittaker's youtube video series based on his "Incredibly Useful Exercises for Double Bass" ; Hal Robinson "Strokin' " based on the Sevcik School of Bowing Technique for Violin.
The most important considerations seem to be are SPEED, VOLUME, STYLE.
Let's get nerdy: Spiccato describes or indicates an "off the string" or "bouncing stroke". There are two ways to initiate the stroke, either from above the string (ie. off) or from the string (ie. on) and it always is terminated off the string.
Linguistically speaking, the word spiccato is an Italian past participle that is derived from the verb spiccare [regular transitive verb: 1 staccare una cosa da un’altra a cui รจ attaccata. 2 compiere un movimento brusco staccandosi da terra. 3 emettere ♦ as an intransitive verb: fare spicco, distinguersi.]
1. to pick, pluck, or cut off something from another thing to which it is attached.
2. to jump, take off/take flight, fly off from the ground
3. to emit, give off, let out
for extra Italian points it also mean to distinguish one's self as in stand out or stick out.
The noun spicco translates as distinction, conspicuousness, stature, prominence.
It is the opposite of *appiccare* (to attach/stick on), and thus fundamentally means to detach something that has been attached; in many contexts, it is synonymous with *staccare* (to detach/remove), which is the more common term in spoken language.
Linguistic nerd moment over.
Back to bass, bows and strokes.
I love the way Bradetich describes the stroke, it is clear and insightful. "The definition of spiccato is simply 'to bounce.' The bow strikes the string coming from above the string and after getting the string to speak, releases back into the air."
What a gift of clarity.
He goes on to say, "The goal is to produce a lighter sound than the staccato stroke, one with a bouyant quality that crates an "up" feeling, as opposed toa "down" or pressed feeling... [it] is primarily used as a steady rhythmic underpinning to the structure of the music. The role, sound, and application of the spiccato stroke changes throughout the different style sof composers and periods of music."
The master player/educator doesn't stop there. He explains, "the 'controlled' spiccato can be broken down into many subcategories, but there are four basic stokes that have clearly identifiable differences: 1. Mozart, 2. Beethoven, 3. Brahms, 4. Strass."
Here we start getting into specifics and it useful to bring in the other resources. Barry Green does an excellent job of breaking down the mechanics of this stroke. He explains that there are two major mechanical functions, or physical vectors of energy, that take place to create spiccato. These two vectors or constituents are the horizontal motion (left right or up-bow down-bow direction) and the vertical motions (into and away from the string).
He explains that musical passages of slower speeds, and heavy dynamics tend to use predominantly horizontal motion, which he also calls "arm spiccato."
In musical passages of faster speeds, and lighter dynamics tend to use predominantly vertical motion, which he also calls "wrist spiccato."
Naturally, there is a vertical and horizontal component to all off-the-string strokes, and this returns us to Bradetich who explains that "In the Mozart spiccato, the direction of the bow hitting the string makes the shape of a V. The Beethoven stroke uses more horizontal motion in the right hand and arm" more of a U shape. "The Brahms stroke is broadening of the Beethoven stroke." The shape resembles a semi-circle, think concave, half-moon, arc or meniscus. He describes it as a "saucer-shape." Finally, the "Strauss spiccato is a more aggressive outgrowth of the Beethoven stroke. Its right arm and hand usage is very similar to the Beethoven stroke, but a harder attack or bite into the string and is more clearly defined on the release."
One very important mechanical observation that Bradetich discusses is "The ever-changing bow stroke length. For ALL bow strokes, the length of the stroke will be longer on the higher strings and shorter on the lower strings. The same ratios are in effect when playing all bow strokes on the same string as the left hand moves up and down the string. As the string length become shorter (notes go higher), the length of the bow strokes needs to increase and the opposite is true when descending to lower pitches on the same string."
The one element Bradetich fails to address is the speed. This is where Dennis Whittaker and Barry Green come in imperfectly handy. Green proposes that at tempos featuring 16th note subdivisions, mezzo-forte to fortissimo dynamic, with a heavy character can be played with "arm" or "horizontal" spiccato between 0-85 BPM to the quarter note.
He also proposes at tempos featuring 16th note subdivisions, piano to forte dynamic, with a lighter character can be played with "wrist" or "vertical" spiccato between 0-105 BPM to the quarter note.
So lemme give it a try as I am learning to play the underhand grip.
https://www.canva.com/design/DAHZZ797UEc/e2yXJ6ESH2NpYt7v9Dflqg/watch
Let's speed things up:
https://www.canva.com/design/DAHZZy4YPJU/83_IxDSPH0QgGFd02_I2wQ/watch
Just for reference, here is some overhand/french grip - after 20 years I am glad it is noticeably better/easier.
https://www.canva.com/design/DAHZZ2uFNk8/nfjzQ8bderR5lgz4Lyy6gw/watch

















