我无法自行设置PyQt。我的想法是创建一个具有歌曲标题和专辑封面的音乐播放器。我已经成功创建了自己的窗口并添加了专辑封面。但是我无法在正确的位置添加标签。我希望歌曲标题位于窗口的顶部中心，如下图所示：

我尝试了很多方法，但是没有运气。

import sys
from PyQt5.QtGui import QIcon,QPixmap,QFontDatabase,QFont
from PyQt5.QtWidgets import QApplication,QLabel,QMainWindow,QWidget,QGridLayout,QDialog
from PyQt5.QtCore import Qt,QRect

# Subclass QMainWindow to customise your application's main window
class MainWindow(QMainWindow):
    def __init__(self,*args,**kwargs):
        super(MainWindow,self).__init__(*args,**kwargs)
        self.title = 'PyQt5 simple window - pythonspot.com'
        self.left = 10
        self.top = 10
        self.width = 480
        self.height = 320
        self.initUI()

        self.setWindowTitle("My Awesome App")

    def add_font(self):
        # Load the font:
        font_db = QFontDatabase()
        font_id = font_db.addApplicationFont('American Captain.ttf')
        families = font_db.applicationFontFamilies(font_id)
        ttf_font = QFont(' '.join(families),15)
        return ttf_font

    def initUI(self):
        ttf_font = self.add_font()
        w = QWidget()
        self.setWindowTitle(self.title)
        self.setGeometry(self.left,self.top,self.width,self.height)
        self.show()
        album_cover = QLabel(self)
        album_pic = QPixmap('resized_image.jpg')
        album_cover.setPixmap(album_pic)

        album_cover.setalignment(Qt.AlignCenter)
        self.setCentralWidget(album_cover)


        art_alb = QLabel(self)
        art_alb.setfont(ttf_font)
        art_alb.setText("michael buble - christmas")
        art_alb.setGeometry(self.x,self.y,self.x,self.y)
        art_alb.setalignment(Qt.AlignTop | Qt.AlignCenter )
        art_alb.show()
        self.show()



app = QApplication(sys.argv)

window = MainWindow()
window.show()

app.exec_()