This Petosa AM 1300 concert accordion is a masterpiece. The instrument was made in 1973 and still looks fabulous. It must have been stored in a time machine. The aged mahogany body and reed blocks amplify the sound of the best Guidobaldi hand-made reeds. The walnut keyboard is a delight to play. With 45-key treble range (F-C#) and Quint Free-bass in addition to the classic Stradella preset chords system this accordion will be perfect for a concert performer.
The
accordion comes with interchangeable "acoustic" grill without tone
modulator or amplification.
SOUND SAMPLES (headphones recommended)
The Quint Free-bass system is very intuitive (see the diagram below). The first two rows (counter-bass and bass) remain the same. The next two rows (major and minor chords in Stradella system) now play single notes like the first two rows but one octave higher. The fifth and sixth rows (seventh and diminished chords in Stradella) play single notes in the same layout as the first two rows but two octave higher. This way, the performer can use the knowledge about bass and counter-bass buttons layout and play melody spanning 3 octaves. Using the L, M, and LM free-bass switches one can add even a 4th octave of single notes switching from L to M for the highest octave.
The pictures below will give you more details about the craftsmanship and features of this instrument. Call 973-219-9259 with any questions.
Switching to the acoustic grill (lighter weight and more open tonal projection)...
Let's take a look inside this beautiful accordion and appreciate the design and craftsmanship...
The picture below shows the amplified grill with built-in tone modulator. When we close the tone modulator the sound will be warmer and similar to a tone chambered effect. As a matter of fact the resonant mahogany body in combination with the brass sound boards (custom feature) serves as a tone chamber for all reeds.
The keyboard is perfectly aligned and calibrated. The valves are like new. You will play better on this instrument.
Very clean bass mechanics - with the quint-free-bass system we switch from Stradella to single notes by clever use of the bass valves and switch slides and without the added complexity of the chromatic convertor mechanics.
The resonant accordion body is crafted from aged mahogany and along with the brass sound boards serves as an extended resonant chamber, in a sense a tone chamber for all reeds.
Next - the bass side...
Please, note that the empty slots in the reed blocks (marked on the back wall with "X") are left without reeds by design. There are no valves underneath.
The close-up view of the reeds is worth a whole book chapter on reed making!
