Change Log

Leipzig still sees occasional breaking changes, though every effort will be made to document them here.

New in 0.10.0

• Addition - Clojurescript is supported on all namespaces other than live.
• Addition - augment adds to an element of a chord.
• Bug fix - The example works again.

New in 0.9.0

• Addition - phrase accepts vector durations, representing repeated notes.
• Addition - phrase accepts an optional third argument for velocities.
• Addition - but replaces part of a melody.
• Addition - tempo applies a transformation to both time and duration.
• Addition - Experimental accelerando linearly interpolates between two relatively different rates.
• Addition - play allows for lead-in notes with negative times.
• Breaking change - where ignores missing keys.
• Bug fix - play no longer throws a NullPointerException for finite sequences of notes.

New in 0.8.0

• Breaking change - In phrase, rests are reified as notes of nil pitch.
• Breaking change - then and times do not allow padding.
• Breaking change - bpm returns a fn that converts beats to seconds, to match Supercollider.
• Addition - mapthen provides a temporal equivalent to mapcat.

New in 0.7.0

• Breaking change - The help macro has been removed because it wasn't helpful.
• Addition - stop kills all running melodies.
• Addition - with is variadic.

New in 0.6.0

• Addition - nils represent rests in phrase. Note, ensure you use rhythm instead of (phrase ... (repeat nil)) or phrase will never return.
• Addition - Sequentials (lists, vectors and lazy-seqs) represent clusters in phrase.
• Addition - Maps represent chords in phrase.
• Addition - then and times accept an optional parameter controlling when the subsequent melody starts.

New in 0.5.0

• Breaking change - jam is not a macro, so it expects a ref as an argument.
• Breaking change - crab translates the result to avoid playing it before the original.
• Bug fix - crab reflects melodies according to the end of each note (see issue #2) and sorts the resulting notes by time to ensure order is preserved.
• Addition - having zips arbitrary atributes onto melodies.
• Addition - just translates from midi to frequency using just intonation.
• Addition - rhythm builds sequences of notes without pitch.
• Addition - Codox documentation.

New in 0.4.0

• Breaking change - play and play-note are in the new leipzig.live namespace.
• Breaking change - high and low operate on midi, not degrees.
• Bug fix - Fractional degrees are linearly interpolated by scale.
• Addition - inversion transforms chords.
• Addition - raise and lower are like high and low, but for degrees.
• Addition - from is public in leipzig.scale.
• Addition - wherever is like where, but selectively transforms notes.
• Experimental - Alternatives to equal temperament are provided in leipzig.temperament.
• Experimental - The jam macro in leipzig.live affords redef-aware looping.

New in 0.3.0

• Breaking change - play returns a future instead of blocking.
• Bug fix - then uses with instead of concat to ensure order is preserved.

New in 0.2.0

• Bug fix - phrase is lazy both on its inputs and output.
• Addition - Leipzig is available under the MIT license.

New in 0.1.0

• Addition - Melodies are modelled as sequences of maps, ordered by :time.
• Addition - play lazily sends notes to SuperCollider as they are required.
• Addition - The play-note multimethod arranges notes to instrument on the :part key.
• Addition - Scales are modelled as functions that translate degrees to midi.
• Addition - Canons are modelled as functions that transform one melody into another.
• Addition - Chords are modelled as maps.