The hospital music library may vary from a few recordings to a composite collection of all forms of musical literature available. General hospitals which treat all diseases and age groups will require the most extensive and catholic varieties of all kinds of music. Specialty hospitals can operate on a library tailored to their individual needs. A hospital for the aged will not require too much of contemporary popular music. For purposes of inclusiveness, the ideal will be discussed in the hope that some hospitals will be able to afford it and that others will be able to select those items which become possible for them. _Recordings._ The choice of recordings will be determined by the usual hospital population. In building up the record library the music aide should submit check lists to every patient in the hospital on any one day. The list should include ten specific titles in each of six categories: symphony, opera, operetta, folk-songs, old-time favorites, and the currently popular songs. These should be carefully tabulated and should be used to form the nucleus of the permanent collection. A space should be left for patients to write in other pieces than those named. Records should be purchased in the order of their numerically recorded popularity. A collection should begin with one record per hospital bed. This method of starting a library is very tedious but well worth the effort, because only by determining the musical tastes of patients can you give the majority the music they want. The musical tastes of the patients will not vary significantly after a complete turn-over in patient census, since most hospitals derive their patient population from the same geographic area, and the tabulation of musical desires arrived at in this manner will correspond satisfactorily with the tastes of the same age group in the community. If the budget will not permit an original collection of this size, it might be reduced to half of that recommended, but that is a minimum. The collection should be built up at a rate of approximately one record for every ten new patient admissions. The choice of additional records should be on a request basis, but the proportion of the six categories as originally determined should remain relatively constant to keep the collection balanced. Whenever there is a choice of two or more recordings of the same piece, the discs to choose are those which are played softly or sweetly so that they are adaptable for the additional purpose of mealtime or restful music. In the library of recordings there should be included albums of records for special occasions and holidays. Patients look forward to hearing Irish songs on St. Patrick’s Day and appropriate songs on other holidays. To accompany religious services the albums prepared by Bibletone are valuable. A glance through any standard record catalogue will readily permit the music aide to assemble a suitable collection.