message: exporting all core classes
  also exporting ftom and mtof
diff: -export { ToneAudioNode } from "./context/ToneAudioNode";
  -export { Param } from "./context/Param";
  -export { Gain } from "./context/Gain";
  -export { Context } from "./context/Context";
  -export { OfflineContext } from "./context/OfflineContext";
  -export { Offline } from "./context/Offline";
  -export { ToneAudioBuffer } from "./context/ToneAudioBuffer";
  -export { ToneAudioBuffers } from "./context/ToneAudioBuffers";
  -export { Delay } from "./context/Delay";
  -export { Clock } from "./clock/Clock";
  -export { Frequency } from "./type/Frequency";
  -export { Time } from "./type/Time";
  -export { Ticks } from "./type/Ticks";
  -export { Midi } from "./type/Midi";
  -export { TransportTime } from "./type/TransportTime";
  -export { Draw } from "./util/Draw";
  -export { StateTimeline } from "./util/StateTimeline";
  -export { IntervalTimeline } from "./util/IntervalTimeline";
  -export { Timeline } from "./util/Timeline";
  -export { Emitter } from "./util/Emitter";
  -export { Tone } from "./Tone";
  -export { Destination } from "./context/Destination";
  -export { Transport } from "./clock/Transport";
  -export { dbToGain, gainToDb, intervalToFrequencyRatio } from "./type/Conversions";
  -export { optionsFromArguments, defaultArg } from "./util/Defaults";
  -export * from "./Connect";
  +export * from "./context/Context";
  +export * from "./context/Destination";
  +export * from "./context/Delay";
  +export * from "./context/Gain";
  +export * from "./context/Offline";
  +export * from "./context/OfflineContext";
  +export * from "./context/Param";
  +export * from "./context/ToneAudioBuffer";
  +export * from "./context/ToneAudioBuffers";
  +export * from "./context/ToneAudioNode";
  +export * from "./clock/Clock";
  +export * from "./clock/Transport";
  +export * from "./type/Frequency";
  +export * from "./type/Midi";
  +export * from "./type/Time";
  +export * from "./type/Ticks";
  +export * from "./type/TransportTime";
  +export * from "./util/Draw";
  +export * from "./util/Emitter";
  +export * from "./util/IntervalTimeline";
  +export * from "./util/StateTimeline";
  +export * from "./util/Timeline";
  export * from "./util/TypeCheck";
  +export * from "./Tone";
  +export * from "./Connect";
  +
  +export { dbToGain, gainToDb, intervalToFrequencyRatio, ftom, mtof } from "./type/Conversions";
  +export { optionsFromArguments, defaultArg } from "./util/Defaults";
  +
  // get the units and export them under the "Unit" namespace
  import * as Unit from "./type/Units";
  export { Unit };
  