NAMM's latest report into the global music market shows the US experiencing slight growth, lead by the DJ sector.
Overall the US market was valued at $6.81bn in 2013, up 2.1 per cent on the previous year. Global market share remained steady at just over 40 per cent.
Whilst there was growth in a number of sectors, it was DJ products that saw the biggest growth, with values sales up 15.52 per cent. Also performing well were synths, which saw growth of 13.5 per cent and electric pianos, up 12.3 per cent.
In more traditional territory, sales of electric and acoustic guitars were down 0.7 per cent from 2.49m units to 2.47m although value was up seven per cent from $1bn to $1.07bn. Unit sales of effects pedals went down 6.25 per cent, with value down 1.7 per cent.
Product categories that saw the biggest fall were home organs - down 24 per cent - and multitrack recorders, down 11.3 per cent.
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The acoustic piano market saw unit sales fall 3.9 per cent, but value sales rise 3.93 per cent, while digital pianos fared rather better in unit terms, with a rise of 1.9 per cent, while value was up 2.72 per cent.
The drum kit market took a hit, with unit sales down 11.18 per cent and value down six per cent.
Elswhere, the UK market returned to the report for the first time in a number of years but there was nothing in terms of any hard data, save for a 2005 figure that estimates market value at around $528m with a global market share of 3.2 per cent.