These albums are a strident body of work. Perhaps I should declare that Mike Westbrook can do little wrong in my ears before observing that these albums have got just about everything in 'jazz'. They are fine examples of the wealth of talent in UK jazz of the time which has not received the acclaim it truly deserves.
Rather than rattle-on about the twists, turns and theoretical dynamics of the pieces, I will leave you with this thought .. recognising that Marching Song's are war-protest albums, I was immediately minded of the poems of Wilfred Owen and how wonderfully they might be 'merged' with this music in a similar fashion to Glad Day - another Westbrook Masterpiece.
At £7.99 new, or less for good second-hand, buy it quick then add your voice to the rousing chorus demanding long overdue justice for the Crown Jewels of English music : 60's/70's UK Jazz. Ask Gilles Peterson