_Sempre marcatissimo_--always well marked, _i.e._, strongly accented.
131. Many other terms are encountered which on their face sometimes seem to be quite formidable, but which yield readily to analysis. Thus _e.g._, _crescendo poco a poco al forte ed un pochettino accelerando_, is seen to mean merely--"increase gradually to _forte_ and accelerate a very little bit." A liberal application of common sense will aid greatly in the interpretation of such expressions.
132. A _form_ in music is a specific arrangement of the various parts of a composition resulting in a structure so characteristic that it is easily recognized by the ear. Thus _e.g._, although every fugue is different from all other fugues in actual material, yet the arrangement of the various parts is so characteristic that no one who knows the _fugue form_ has any doubt as to what kind of a composition he is hearing whenever a fugue is played. The word _form_ is therefore seen to be somewhat synonymous with the word _plan_ as used in architecture; it is the structure or design underlying music. Examples of form are the canon, the fugue, the sonata, etc.
Speaking broadly we may say that _form_ in any art consists in the placing together of certain parts in such relations of proportion and symmetry as to make a unified whole. In music this implies unity of tonality and of general rhythmic effect, as well as unity in the grouping of the various parts of the work (phrases, periods, movements) so as to weld them into one whole, giving the impression of completeness to the hearer.
133. The primal _basis of form_ is the repetition of some characteristic effect, and the problem of the composer is to bring about these repetitions in such a way that the ear will recognize them as being the same material and will nevertheless not grow weary of them. This is accomplished by varying the material (cf. thematic development), by introducing contrasting material, and by choice of key.
134. The student should note at the outset of this topic the _difference in meaning between_ the terms _form_ and _style_: A _form_ is a plan for building a certain definite kind of composition, but a _style_ is merely a manner of writing. Thus _e.g._, the _fugue_ is a _form_--_i.e._, it is a plan, which although capable of variation in details, is yet carried out fairly definitely in every case; but _counterpoint_ is merely a _style_ or manner of writing (just as Gothic architecture is a style of building), which may be cast into any one of several _forms_.