Sold out


Altamira N300MT Microtonal Classical Guitar

The Altamira N300MT (microtonal) guitar is designed with a fret layout of additional frets halfway on standard frets 2, 4, 5, 7, 9, 11, 14, 16, 17, and is ideal for playing non-Western music or modern microtonal music.

A microtonal guitar turns the concept of traditional fretting based on half-step intervals on its head. This results in the ability to achieve notes smaller (or slightly bigger) than just half and full steps much like a fretless guitar does, only with far greater precision.

This concept in itself isn't so mind-blowing given the spectrum nature of sound (and theoretically there are infinite intervals between half-steps), and such lesser intervals have found extensive historical use in Oriental music, as well as blues in the guise of "blue notes" – it's just that the current shape of the guitar has evolved from the tradition of Western music and its division of the chromatic scale.

Microtonal guitars aren't that new a thing too, with a great number of modern classical composers making great pieces intended for them, such as Ivor Darreg, Harry Partch, and Claude Ballif. Recently, bands such as King Gizzard And The Lizard Wizard have taken microtonal music to exciting new heights.

The N300MT model features a solid cedar top and laminated Indian rosewood back and sides, and has a beautiful Spanish tone.

Solid Cedar Top
African Mahogany Neck
Laminated Indian Rosewood Back and Sides
Gloss Finish
Indian Rosewood Fingerboard
Microtonal frets - additional frets half way on frets 2, 4, 5, 7, 9, 11, 14, 16, 17
650 mm (standard) Scale Length

Acoustic Centre offers free shipping on all new items to most locations within Australia on all orders over $99, excluding Western Australia, Northern Territory and Far North Queensland. Used items have a flat rate shipping fee of $59 within our usual shipping locations. We also offer competitive Express shipping options at checkout.

Customers located in Western Australia, Northern Territory and Far North Queensland recieve free shipping on all accessory orders over $99, but will incur a flat rate instrument or large item shipping charge of $179 (or $299 for Express shipping).

Occasionally due to issues with delivering to remote or unusual destinations, we aren't able to offer free postage. We reserve the right to retract the offer if freight costs exceed 15% of your purchase. We will always notify you if there is an issue and offer a full refund or arrange alternative delivery options.

All strings and accessories will be shipped with tracking via courier or Australia Post. Other items including guitars and amplification equipment will be shipped using our courier service providers, with a tracking number and signature on delivery.

The Acoustic Centre ships goods Australia-wide, however at this time we are unable to accept international orders.

Zip Money - Buy Now, Pay Later.

We offer 3 Months interest free on purchases under $1000, and 6 Months interest free on purchases over $1000.

Click here for more information and Application form - it only takes a minute!

Studio 19 RentalsWe rent the things people love.

Studio19 Rentals operates Australia’s foremost in-store Rental program for musical instrument retailers, and allows you to have the gear of your dreams now for a low monthly price. 

Studio19 offers:

  •  Low monthly payments
  •  Apply to buy at any time
  •  Protection plan available
  •  Return anytime after the minimum rental period
  •  No ongoing account keeping fees or charges

Click here  for more details.

We endeavour to show the actual instrument in stock whenever possible, but the guitar in stock may differ slightly from the one shown on our website. Materials used can look different from guitar to guitar, including timber grain and colour, parts colours and finishing. If an instrument is a one-of-a-kind or preowned guitar, the picture will always be of the actual guitar in stock, but production models may have slight variations to the picture shown.

If you're after a particular look, feel free to email us at or send us a message through our chat service to request photos of the actual guitar in stock. We are more than happy to send through pictures of all in-stock guitars, to make your choice easier.

Please note that returns will not be accepted for variations in timber grain /  colouring, finish variations and parts colouring, unless there is a fault with the instrument. If you have any questions at all regarding an instrument's appearance, just drop us a line - we're always happy to send photos, and if we have more than one instrument in stock you'll be able to choose the exact guitar that you receive!

Like this? Try these!