St Michael and All Angels church has a two-manual tracker instrument organ built by William Sweetland of Bath and was installed in 1909. The installation was funded partly by public subscription but with the help of £110 donated by Mr Andrew Carnegic (of Carnegie Hall fame). This was the result of a lucky appeal by the Vicar Reverend M Snepp to this well-known philanthropist.

The Sweetland church organ is located under a stone arched organ chamber behind the north choir. It has eighteen silvered display air pipes, projecting up from the wooden console, which houses the layered keys and side mounted stops. The organ builder William Sweetland was born in 1820 at North Bradley, Wiltshire, and died 1910. He was a former choirmaster in Somerset and was apprenticed to Mr Sherborne another famous organ builder at Bath. Previously, Mr Sherborne, was a coach-builder in the mid 1840's.

Organ Description
The Sweetland church organ is located under a stone arched organ chamber behind the north choir. It has eighteen silvered display air pipes, projecting up from the wooden console, which houses the twin layered keys and side mounted jamb stops. The pedal board is a concave parallel with 30 keys. Both the 'Great' and 'Swell' Compass - low C high A3 having 58 keys.

There are two angled jambs; the right hand side accommodates the Great, Pedal, Pedal couplers and in the left hand jamb the Swell, and a few other couplers are housed. The couplers enable Swell to Pedal, Swell to Great, Swell Octave and Great to Pedal. Additional organ accessories include: two composition pedals to each manual, a hitch down Swell pedal and pedal couplers by On/Off pistons .

Among the many organs that William Sweetland has manufactured and installed locally, the 1875 church organ at St. Lawrence Church Hilmarton has a 'Historic Organs Certificate' awarded in 2005 for their Grade II organ which is a good representative of the work of their builder, and is in substantially original condition.

The Button Memorial
The Organ and bookracks partly obscured an interesting memorial to two of Lyneham's generous benefactors of the past, Sir Robert and Lady Eleanor Button:

"To the memory of Dame Eleanor, the Relict to Sr. Robert Button of Tockenham Court, Bart, who dyed the 15th of Febr 1706 aged 88. And gave to the poor of the Parish of Lineham for ever £240. And of Mr Charles Compton Gent. Brother of ye Lady Button who dyed ge 12th Jan: 1707 aged 69 and gave to the Poor of the Parish of Lineham for ever £74 pounds.”

Lyneham Village Online has spent over three years collating and arranging information on the Button family, which has significant associations with the history of Lyneham village, more..

At the rear of the organ behind the curtain screen, some old scribblings of previous organ tuners have left their mark. One eligible script is the occasion when the organ was tuned. "This Organ was tuned on April 16th 1935, This organ was again tuned .."